Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phu vu hon snippets" » "phuc vu hon snippets", "phu nu hon snippets", "khu vu hon snippets", "phu vu hong snippets", "phu vu hoan snippets", "phu vu 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: (((("phu vu hon 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 hon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phu vu hon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phu vu hon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.