Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nap dang don snippets" » "nam dang don snippets", "nao dang don snippets", "nhan dang don snippets", "nap dang do snippets", "nap dang dan snippets", "nap 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: (((("nap 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: (((("nap dang don snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nap dang don snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nap dang don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.