Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"cuon sach java snippets" » "duong sach java snippets", "cuoc cach java snippets", "co sach java snippets", "cuon sach va snippets"
"python using c snippets" » "python using lc snippets", "python using a snippets", "python using _ 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: (((("python using c snippets") or ("cuon sach java snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using c snippets") OR ("cuon sach java snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( python using c snippets ) or ( cuon sach java snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using c snippets") or ("cuon sach java snippets"))) or ("locating bugs code snippets"))*.