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