Perhaps you should try some spelling variations:
"dung tinh than slippers" » "dang tinh than slippers", "dung ninh than slippers", "dung tin than slippers", "dung tinh thanh slippers", "dung tinh toan slippers", "dung tinh thai slippers", "dung tinh than slippery", "dung tinh than 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: (((("dung tinh than slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung tinh than slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung tinh than slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung tinh than slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.