Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cau nhi den snippets" » "cau thi den snippets", "cau noi den snippets", "cau nha den snippets", "cau thai den snippets", "cau khi dien snippets", "cau nghi don 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 nhi den 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 nhi den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cau nhi den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cau nhi den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.