Perhaps you should try some spelling variations:
"quang tran cao snippets" » "quang tuan cao snippets", "quang trung cao snippets", "quang thanh cao snippets", "quang toan cao snippets", "quang tran chau snippets", "quang trang cho snippets"
"using a code snippets" » "using a core snippets"
"locating bug code snippets" » "locating bug core snippets", "locating bung code snippets", "locating bugs code snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("using a code snippets") or ("quang tran cao snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using a code snippets") OR ("quang tran cao snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using a code snippets ) or ( quang tran cao snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using a code snippets") or ("quang tran cao snippets"))) or ("locating bug code snippets"))*.