Perhaps you should try some spelling variations:
"dung nen doanh slippers" » "dung lien doanh slippers", "dung van doanh slippers", "dung von doanh slippers", "dung nhan doanh slippers", "dung ngan doanh slippers", "dung tren doanh slippers", "dung nen doanh slippery", "dung nen 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: (((("dung nen 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: (((("dung nen doanh slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung nen doanh slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung nen doanh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.