Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"huu hieu ke snippets" » "huu hiep ke snippets", "thuc hieu ke snippets", "thau hieu ke snippets", "huu hieu kem snippets", "huu chieu ke snippets", "huu hieu ky 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 hieu ke 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 hieu ke snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( huu hieu ke snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("huu hieu ke snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.