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