Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nam di cach snippets" » "nam doi cach snippets", "nam loi cach snippets", "nam cai cach snippets", "nam da cach snippets", "nam do cach 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 di cach 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 di cach snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nam di cach snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nam di cach snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.