Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phuc van so snippets" » "thuc van so snippets", "phuc va so snippets", "chuc van so snippets", "phuc van son snippets", "phuc van soa snippets", "phuc van su 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: (((("phuc van so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phuc van so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phuc van so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phuc van so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.