Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"huu phan moi snippets" » "huu han moi snippets", "cuu phan moi snippets", "huu chan moi snippets", "huu phan mo snippets", "huu pham moi snippets", "huu phan hoi 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 phan moi 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 phan moi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( huu phan moi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("huu phan moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.