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