Perhaps you should try some spelling variations:
"dung doanh ky slippers" » "dung dan ky slippers", "dung dong ky slippers", "dung doanh ly slippers", "dung doanh ket slippers", "dung hanh ky slippers", "dung doanh ky slippery", "dung doanh ky 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 doanh ky 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 doanh ky slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung doanh ky slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung doanh ky slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.