Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nam than cua snippets" » "nam thanh cua snippets", "nam thang cua snippets", "nam thuan cua snippets", "nam nhan cua snippets", "nam thai cua snippets", "nam ban cua 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 than cua 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 than cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nam than cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nam than cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.