Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nam phan cau snippets" » "dam phan cau snippets", "nam thanh cau snippets", "nam thang cau snippets", "nam phan dau snippets", "nam phan cac snippets", "nam phan tu 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 phan cau 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 phan cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nam phan cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nam phan cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.