Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thanh tu du snippets" » "hanh tu du snippets", "nhanh tu du snippets", "thanh tung du snippets", "thanh tu duy snippets", "thanh tu dau snippets", "thanh tru du 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 tu du 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 tu du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thanh tu du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thanh tu du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.