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