Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pham duc dot snippets" » "pham duy dot snippets", "pham duc dong snippets", "pham duc duat snippets", "phan duc dot 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: (((("pham duc dot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("pham duc dot snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham duc dot snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham duc dot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.