Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pham va mong snippets" » "pham van mong snippets", "pham ma mong snippets", "pham tai mong snippets", "pham va cong snippets", "pham va dong snippets", "pham va thong 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 va mong 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 va mong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham va mong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham va mong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.