Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nao hai son snippets" » "nao phai son snippets", "ngo hai son snippets", "nam hai son snippets", "nao thai son snippets", "nao ha son snippets", "nao dai son 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: (((("nao hai son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nao hai son snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nao hai son snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nao hai son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.