Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"huu phuc den snippets" » "huu thuc den snippets", "huu phach den snippets", "huu duc den snippets", "huu phuc sen snippets", "huu phuc dong snippets", "huu thuc dan 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 phuc 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: (((("huu phuc den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( huu phuc den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("huu phuc den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.