Perhaps you should try some spelling variations:
"dung lieu ban slippers" » "dung hieu ban slippers", "dung tieu ban slippers", "dung viet ban slippers", "dung lieu bai slippers", "dung dieu ban slippers", "dung lieu van slippers", "dung lieu ban slippery", "dung lieu ban 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 lieu ban 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 lieu ban slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung lieu ban slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung lieu ban slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.