Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
thanh tung » thanh cong
chong cong » cong cong, thong cong, cuong cong
lang thanh » dang thanh, tang thanh, lang thang
hien danh » thien danh, hien hanh, hien khanh
cua chong » cua cong, cua chung, cua khong
cong lang » cong vang, cong luong, cong quang
thanh cap » thanh lap, hanh cap, than cap
tung cua » trung cua, tuong cua, dung cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hien danh) or (hien nhanh)) - thanh tung cua chong cong lang thanh cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien danh) OR (hien nhanh)) - thanh tung cua chong cong lang thanh cap.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien danh) or (hien nhanh)) - thanh tung cua chong cong lang thanh cap*.