Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pham mo den snippets" » "phap mo den snippets", "pham ma den snippets", "pham o den snippets", "pham moi den snippets", "pham mo dun 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 mo den 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 mo den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham mo den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham mo den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.