Perhaps you should try some spelling variations:
"dang nhat danh snippets" » "dung nhan danh snippets", "dung nha danh snippets", "dang nhat hanh snippets", "dang nhat anh snippets", "dang nhat ban snippets", "dang nhat danh slippers"
"dung java java snippets" » "dung va java snippets", "dung java java slippers"
"locating bug code snippets" » "locating bug code slippers", "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 nhat danh snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang nhat danh snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang nhat danh snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang nhat danh snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.