Perhaps you should try some spelling variations:
"dung tinh danh slippers" » "dang tinh danh slippers", "dung ninh danh slippers", "dung tin danh slippers", "dung trinh danh slippers", "dung minh danh slippers", "dung sinh danh slippers", "dung tinh danh slippery", "dung tinh danh 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 tinh danh 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 tinh danh slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung tinh danh slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung tinh danh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.