Perhaps you should try some spelling variations:
"tran dung tranh slippers" » "tran dung thanh slippers", "tran dong tranh slippers", "tran dung trong slippers", "tran dang tranh slippers", "tran hung tranh slippers", "tran quang tranh slippers", "tran dung tranh slippery", "tran dung tranh 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: (((("tran dung tranh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tran dung tranh slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tran dung tranh slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tran dung tranh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.