Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"huu ngu doan snippets" » "huu ngu dan snippets", "huu ngo doan snippets", "huu ngu van snippets", "huu nhu doan snippets", "cuu ngu doan snippets", "huu nghi doan 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 ngu doan 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 ngu doan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( huu ngu doan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("huu ngu doan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.