Perhaps you should try some spelling variations:
"quan van code snippets" » "luan van code snippets", "quan va code snippets", "quan luan code snippets", "quan van de snippets", "quan van hoe snippets", "quan van cong snippets", "quan van code slippers"
"cong bug code snippets" » "cong dung code snippets", "cong hung code snippets", "cong bang code snippets", "cong 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: (((("quan van code snippets") or ("cong bug code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("quan van code snippets") OR ("cong bug code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quan van code snippets ) or ( cong bug code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quan van code snippets") or ("cong bug code snippets"))) or ("locating bug code snippets"))*.