Perhaps you should try some spelling variations:
"khoa tai code snippets" » "khoa tap code snippets", "khoe tai code snippets", "khoa than code snippets", "khoa tai cong snippets", "khoa tai co snippets", "khoa tai hoe snippets", "khoa tai code slippers"
"dung bug code snippets" » "dung dung code snippets", "dung hung code snippets", "dung rung code snippets", "dung bug code slippers"
"locating bug code snippets" » "locating bug code slippers"

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: (((("khoa tai code snippets") or ("dung bug code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khoa tai code snippets") OR ("dung bug code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khoa tai code snippets ) or ( dung bug code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khoa tai code snippets") or ("dung bug code snippets"))) or ("locating bug code snippets"))*.