Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thanh tra co snippets" » "thanh toan co snippets", "thanh hoa co snippets", "thanh tra cho snippets", "thanh tra cong snippets", "thanh tranh co 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: (((("thanh tra co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thanh tra co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thanh tra co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thanh tra co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.