Perhaps you should try some spelling variations:
"dung nang dan slippers" » "dun nang dan slippers", "dung dang dan slippers", "dung quang dan slippers", "dung nang danh slippers", "dung nong dan slippers", "dung nang dau slippers", "dung nang dan slippery", "dung nang dan 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 nang dan 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 nang dan slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung nang dan slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung nang dan slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.