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