Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ngu noi de snippets" » "nu noi de snippets", "ngu nguoi de snippets", "nguoi noi de snippets", "ngu nuoi de snippets", "ngu noi ve snippets", "ngu noi da 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: (((("ngu noi 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: (((("ngu noi de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ngu noi de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ngu noi de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.