Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khoi nang xe snippets" » "hoi nang xe snippets", "khoi nganh xe snippets", "khoai lang xe snippets", "khoi nang x snippets", "khoi nang he snippets", "khoi dang xet 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: (((("khoi nang xe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khoi nang xe snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khoi nang xe snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khoi nang xe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.