Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pham ca son snippets" » "pham can son snippets", "pham ma son snippets", "pham va son snippets", "pham cao son snippets", "pham ha son snippets", "pham ca san 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 ca son 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 ca son snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham ca son snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham ca son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.