diff --git a/backend/src/v1/books/books.service.ts b/backend/src/v1/books/books.service.ts
index 1f1bced8..f330b844 100644
--- a/backend/src/v1/books/books.service.ts
+++ b/backend/src/v1/books/books.service.ts
@@ -168,7 +168,7 @@ export const searchInfo = async (
   const disassemble = query ? disassembleHangul(query) : '';
   const initials = query ? extractHangulInitials(query) : '';
   const fullTextSearch = removeSpecialCharacters(disassemble);
-  const likeSearch = disassemble.replaceAll(' ', '%').replaceAll(' ', '%');
+  const likeSearch = disassemble.replaceAll("'", '').replaceAll(' ', '%');
 
   let matchScore: string;
   let searchCondition: string;
diff --git a/backend/src/v1/search-keywords/searchKeywords.service.ts b/backend/src/v1/search-keywords/searchKeywords.service.ts
index 2b688209..7426f7d9 100644
--- a/backend/src/v1/search-keywords/searchKeywords.service.ts
+++ b/backend/src/v1/search-keywords/searchKeywords.service.ts
@@ -164,15 +164,15 @@ export const createSearchKeywordLog = async (
 
 export const getSearchAutocompletePreviewResult = async (keyword: string) => {
   const LIMIT_OF_SEARCH_KEYWORD_PREVIEW = 12;
-  let keywordInitials = extractHangulInitials(keyword as string);
+  let disassembledKeyword = extractHangulInitials(keyword as string);
   let isCho = true;
 
-  if (keyword !== keywordInitials) {
-    keywordInitials = disassembleHangul(keyword as string);
+  if (keyword !== disassembledKeyword) {
+    disassembledKeyword = disassembleHangul(keyword as string);
     isCho = false;
   }
-  const fullTextSearch = removeSpecialCharacters(keywordInitials);
-  const likeSearch = keywordInitials.replaceAll(' ', '%').replaceAll(' ', '%');
+  const fullTextSearch = removeSpecialCharacters(disassembledKeyword);
+  const likeSearch = disassembledKeyword.replaceAll("'", '').replaceAll(' ', '%');
 
   let queryResult: AutocompleteKeyword[] = [];
   let totalCount: number;
diff --git a/backend/src/v1/utils/processKeywords.ts b/backend/src/v1/utils/processKeywords.ts
index bda822a9..ce3bfbd5 100644
--- a/backend/src/v1/utils/processKeywords.ts
+++ b/backend/src/v1/utils/processKeywords.ts
@@ -14,6 +14,6 @@ export const extractHangulInitials = (original: string | undefined) => {
 };
 
 export const removeSpecialCharacters = (input: string) => {
-  const regex = /[^a-zA-Z0-9가-힣\s]/g;
+  const regex = /[^a-zA-Z0-9가-힣ㄱ-ㅎㅏ-ㅣ\s]/g;
   return input.replace(regex, '');
 };