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