Perhaps you should try some spelling variations:
"dang tran danh slippers" » "dang thanh danh slippers", "quang tran danh slippers", "hoang tran danh slippers", "dang tran dinh slippers", "dang tran manh slippers", "dang tran dang slippers", "dang tran danh slippery", "dang tran 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: (((("dang tran 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: (((("dang tran danh slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang tran danh slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang tran danh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.