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