Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dat sach cau snippets" » "mat sach cau snippets", "dat khach cau snippets", "nam sach cau snippets", "dat sach cap snippets", "dat sach dau snippets", "dat sach mau 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: (((("dat sach 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: (((("dat sach cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dat sach cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dat sach cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.