Perhaps you should try some spelling variations:
"tan tran data slippers" » "tan tran dang slippers", "tan tan dat slippers", "tan tran dam slippers", "toan tran data slippers", "than tran data slippers", "tuan tran data slippers", "tan tran data slippery", "tan tran data grippers"
"dung java java snippets" » "dung va java snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("tan tran data slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tan tran data slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tan tran data slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tan tran data slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.