diff --git a/package.json b/package.json
index bfcf1c8..47c0de0 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "@ztimson/utils",
-	"version": "0.26.13",
+	"version": "0.26.14",
 	"description": "Utility library",
 	"author": "Zak Timson",
 	"license": "MIT",
diff --git a/src/search.ts b/src/search.ts
index 37116df..390647b 100644
--- a/src/search.ts
+++ b/src/search.ts
@@ -39,8 +39,8 @@ export function logicTest(target: object, condition: string): boolean {
 			case '=':
 			case '==': return a == b;
 			case '!=': return a != b;
-			case '+': return a?.toString().includes(b);
-			case '-': return !a?.toString().includes(b);
+			case '+=': return a?.toString().includes(b);
+			case '-=': return !a?.toString().includes(b);
 			case '>': return a > b;
 			case '>=': return a >= b;
 			case '<': return a < b;
@@ -55,7 +55,7 @@ export function logicTest(target: object, condition: string): boolean {
 		const and = p.split('&&').map(p => p.trim()).filter(p => !!p);
 		return and.filter(p => {
 			// Boolean operator
-			const prop = /(\S+)\s*(==?|!=|\+|-|>=|>|<=|<)\s*(\S+)/g.exec(p);
+			const prop = /(\S+)\s*(==?|!=|\+=|-=|>=|>|<=|<)\s*(\S+)/g.exec(p);
 			if(prop) {
 				const key = Object.keys(target).find(k => k.toLowerCase() == prop[1].toLowerCase());
 				return evalBoolean(dotNotation<any>(target, key || prop[1]),  prop[2], JSONAttemptParse(prop[3]));
diff --git a/tests/search.spec.ts b/tests/search.spec.ts
index 3b13e03..1a2c0d7 100644
--- a/tests/search.spec.ts
+++ b/tests/search.spec.ts
@@ -4,6 +4,7 @@ const rows = [
 	{id: 1, name: 'Alice', age: 30},
 	{id: 2, name: 'Bob', age: 24},
 	{id: 3, name: 'Carol', age: 30},
+	{id: 4, name: 'David', age: 35},
 ];
 
 describe('Search Utilities', () => {
@@ -37,6 +38,35 @@ describe('Search Utilities', () => {
 		it('returns all if search is falsy and regex enabled', () => {
 			expect(search(rows, '', true)).toEqual(rows);
 		});
+
+		it('handles regex search with special characters', () => {
+			expect(search(rows, '^[AC]', true)).toEqual([rows[0], rows[2]]);
+		});
+
+		it('ignores case when regex is applied', () => {
+			expect(search(rows, 'ALICE', true)).toEqual([]);
+		});
+
+		it('performs partial matches for properties when regex=false', () => {
+			expect(search(rows, 'Da')).toEqual([rows[3]]);
+		});
+
+		it('handles empty array input gracefully', () => {
+			expect(search([], 'test')).toEqual([]);
+		});
+
+		it('handles numeric values with comparison logic in strings', () => {
+			expect(search(rows, 'age < 31')).toEqual([rows[0], rows[1], rows[2]]);
+		});
+
+		// New test cases for `+` and `-` operators
+		it('filters rows using the + operator', () => {
+			expect(search(rows, 'name += Al')).toEqual([rows[0]]);
+		});
+
+		it('filters rows using the - operator', () => {
+			expect(search(rows, 'name -= Al')).toEqual([rows[1], rows[2], rows[3]]);
+		});
 	});
 
 	describe('logicTest', () => {
@@ -67,5 +97,46 @@ describe('Search Utilities', () => {
 		it('returns false for unsupported operators', () => {
 			expect(logicTest(obj, 'x === 10')).toBe(false);
 		});
+
+		it('handles invalid condition strings gracefully', () => {
+			expect(logicTest(obj, 'invalid condition')).toBe(false);
+		});
+
+		it('supports numeric operations with ranges', () => {
+			expect(logicTest(obj, 'x > 5 && x < 15')).toBe(true);
+			expect(logicTest(obj, 'x > 15')).toBe(false);
+		});
+
+		it('handles mixed case keys gracefully', () => {
+			const mixedCaseObj = {TestKey: 123};
+			expect(logicTest(mixedCaseObj, 'TestKey == 123')).toBe(true);
+			expect(logicTest(mixedCaseObj, 'testkey == 123')).toBe(true);
+		});
+
+		it('returns false if condition operators are missing', () => {
+			expect(logicTest(obj, 'x 10')).toBe(false);
+		});
+
+		// New test cases for `+` and `-` operators
+		it('handles the + operator for inclusion', () => {
+			expect(logicTest(obj, 'name += Alpha')).toBe(true);
+			expect(logicTest(obj, 'name += Alp')).toBe(true);
+			expect(logicTest(obj, 'name += Bet')).toBe(false);
+		});
+
+		it('handles the - operator for exclusion', () => {
+			expect(logicTest(obj, 'name -= Alpha')).toBe(false);
+			expect(logicTest(obj, 'name -= Alp')).toBe(false);
+			expect(logicTest(obj, 'name -= Bet')).toBe(true);
+		});
+
+		it('includes partial matches correctly with +', () => {
+			expect(logicTest(obj, 'name += lph')).toBe(true);
+		});
+
+		it('excludes partial matches correctly with -', () => {
+			expect(logicTest(obj, 'name -= lph')).toBe(false);
+			expect(logicTest(obj, 'name -= xyz')).toBe(true);
+		});
 	});
 });