Perhaps you should try some spelling variations:
"dong cuong danh snippets" » "dong duong danh snippets", "dong huong danh snippets", "dang cuong danh snippets", "dong cuon danh snippets", "dong huong dan snippets", "dong cuong linh snippets", "dong cuong 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: (((("dong cuong 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: (((("dong cuong danh snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong cuong danh snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong cuong danh snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.