Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nham tang de snippets" » "nham nang de snippets", "nam tang de snippets", "nhat trang de snippets", "nham trang de snippets", "nham tang le snippets", "nham tang 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: (((("nham tang de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nham tang de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nham tang de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nham tang de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.