Perhaps you should try some spelling variations:
"than tuan cau snippets" » "thanh tuan cau snippets", "tran tuan cau snippets", "thanh xuan cau snippets", "than toan cau snippets", "than quan cau snippets", "than tuan cu snippets"
"dung java java snippets" » "dung va java 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: (((("than tuan cau snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("than tuan cau snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( than tuan cau snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("than tuan cau snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.