Perhaps you should try some spelling variations:
"dung khang anh slippers" » "dung thang anh slippers", "quang khang anh slippers", "dung nhan anh slippers", "dung khang sinh slippers", "dung khang benh slippers", "dung khuong anh slippers", "dung khang anh slippery", "dung khang anh 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 khang anh 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 khang anh slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung khang anh slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung khang anh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.