Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hieu nhe cac snippets" » "hieu he cac snippets", "lieu nhe cac snippets", "thieu nhi cac snippets", "hieu nghe cao snippets", "hieu nghe cnc 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: (((("hieu nhe cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hieu nhe cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hieu nhe cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hieu nhe cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.