Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"huu thong o2 snippets" » "huu thang o2 snippets", "huy thong o2 snippets", "cuu thuong o2 snippets", "huu thong o snippets", "huu thong noi snippets", "huu thong hoa 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: (((("huu thong o2 snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("huu thong o2 snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( huu thong o2 snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("huu thong o2 snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.