Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nao dang don snippets" » "cao dang don snippets", "nam dang don snippets", "nap dang don snippets", "nao dang do snippets", "nao dang dan snippets", "nao dang mon 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: (((("nao dang don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nao dang don snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nao dang don snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nao dang don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.