Perhaps you should try some spelling variations:
"dung tri nhanh slippers" » "dung tri nhan slippers", "dung tai nhanh slippers", "dung tri hanh slippers", "dung tren nhanh slippers", "nhung tri nhanh slippers", "dung tri nhanh slippery", "dung tri nhanh 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 tri nhanh 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 tri nhanh slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung tri nhanh slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung tri nhanh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.