Perhaps you should try some spelling variations:
"dang tran doanh slippers" » "dang toan doanh slippers", "dang trai doanh slippers", "dang tran danh slippers", "dang thanh doanh slippers", "quang tran doanh slippers", "hoang tran doanh slippers", "dang tran doanh slippery", "dang tran doanh 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 doanh 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 doanh slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang tran doanh slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang tran doanh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.