Perhaps you should try some spelling variations:
thanh trung » thanh tung
nhung cong » dung cong, thong cong, hang cong
tran thanh » ban thanh, van thanh, quan thanh
hieu lang » chieu sang, hieu quang, nhieu tang
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
cong tran » cong tan, cong tuan, cong toan
thanh cau » thanh chau, thanh mau, nhanh cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((hieu lang) or (hieu qua)) - thanh trung cua nhung cong tran thanh cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu lang) OR (hieu qua)) - thanh trung cua nhung cong tran thanh cau.
• Adding a wildcard symbol may retrieve word variants: ho ((hieu lang) or (hieu qua)) - thanh trung cua nhung cong tran thanh cau*.