Perhaps you should try some spelling variations:
"duoc cach danh snippets" » "cuoc cach danh snippets", "duoc cac danh snippets", "truoc cach danh snippets", "duoc sach danh snippets", "duoc cach nhanh snippets", "duoc cac dan snippets", "duoc cach 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: (((("duoc cach 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: (((("duoc cach danh snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duoc cach danh snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duoc cach danh snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.