Perhaps you should try some spelling variations:
"cong danh dat slippers" » "cuong danh dat slippers", "cong dan dat slippers", "cong thanh dat slippers", "cong danh bat slippers", "cong dinh dat slippers", "cong danh dat slippery", "cong danh dat 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: (((("cong danh dat slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong danh dat slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong danh dat slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong danh dat slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.