Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nam noi du snippets" » "nam hoi du snippets", "nam doi du snippets", "nam nhin du snippets", "nam noi dau snippets", "nam noi da snippets", "nam noi de 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: (((("nam noi 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: (((("nam noi du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nam noi du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nam noi du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.