Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thong tu co snippets" » "phong tuc co snippets", "thong tin co snippets", "thong ke co snippets", "thong ty co snippets", "thong tu so snippets", "thong tu do snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("thong tu co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thong tu co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thong tu co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thong tu co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.