Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"noi ngu doi snippets" » "doi ngu doi snippets", "ngoai ngu doi snippets", "ngon ngu doi snippets", "noi neu doi snippets", "noi ngu noi snippets", "noi nu doi 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: (((("noi ngu doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("noi ngu doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( noi ngu doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("noi ngu doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.