Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"huu khang le snippets" » "huu han le snippets", "huu hanh le snippets", "huu tang le snippets", "huu quang le snippets", "huu hang ly 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 khang le 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 khang le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( huu khang le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("huu khang le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.