Perhaps you should try some spelling variations:
"dang tran nhan slippers" » "dang thanh nhan slippers", "quang tran nhan slippers", "hoang tran nhan slippers", "dang tran nhat slippers", "dang tan nhan slippers", "dang tran han slippers", "dang tran nhan slippery", "dang tran nhan 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"

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