Perhaps you should try some spelling variations:
cong duong » cuong duong, cong dong, con duong
duong benh » duong binh, giuong benh, duong manh
hieu lang » chieu sang, hieu quang, nhieu tang
benh phan » benh nhan, benh phau, kenh phan
doi hieu » doi chieu, doc hieu, doi hien
cong cua » cong cu, dong cua, huong cua
phan dau » phan tu, hang dau

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: doi hieu lang - thanh cong cua cong duong benh phan dau~.
• Adding a wildcard symbol may retrieve word variants: doi hieu lang - thanh cong cua cong duong benh phan dau*.