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