Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cau danh cau snippets" » "cao danh cau snippets", "chuc danh cau snippets", "nam danh cau snippets", "cau danh dau snippets", "cau danh ca snippets", "cau danh hau 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: (((("cau danh 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: (((("cau danh cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cau danh cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cau danh cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.