Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"cong trinh code snippets" » "cong trinh cong snippets", "cong trinh co snippets", "cong trinh cad snippets"
"trinh dan den snippets" » "trinh han den snippets", "trinh van den snippets", "trinh san den snippets", "trinh ban den snippets", "trinh dan dung 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: (((("trinh dan den snippets") or ("cong trinh code snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh dan den snippets") OR ("cong trinh code snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( trinh dan den snippets ) or ( cong trinh code snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh dan den snippets") or ("cong trinh code snippets"))) or ("locating bugs code snippets"))*.