Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hau cong mot snippets" » "khau cong mot snippets", "cau cong mot snippets", "hau bong mot snippets", "hau cong dot snippets", "hau trong mot snippets", "hau cong mong 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: (((("hau cong mot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hau cong mot snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hau cong mot snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hau cong mot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.