Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thanh doi da snippets" » "thanh loi da snippets", "thanh moi da snippets", "thanh do da snippets", "thanh doi dau snippets", "thanh doi dam snippets", "thanh doi dan 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 doi da 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 doi da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thanh doi da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thanh doi da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.