Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"quan va do snippets" » "quan vi do snippets", "quan ha do snippets", "luan va do snippets", "quan va dao snippets", "quan va doc snippets", "quan va co 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: (((("quan va do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("quan va do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quan va do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quan va do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.