Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phu vu he snippets" » "phuc vu he snippets", "phu nu he snippets", "khu vu he snippets", "phu vu le snippets", "phu vu ha snippets", "phu va he 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: (((("phu vu he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phu vu he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phu vu he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phu vu he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.