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