Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khoi nang we snippets" » "hoi nang we snippets", "khoi nganh we snippets", "khoai lang we snippets", "khoi nang he snippets", "khoi nang mem snippets", "khoi nang meo 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 we 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 we snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khoi nang we snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khoi nang we snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.