Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nam con cho snippets" » "nam chon cho snippets", "nam co cho snippets", "nam hon cho snippets", "nam cong cho snippets", "nam ton cho snippets", "nam con chi 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 con cho 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 con cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nam con cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nam con cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.