Perhaps you should try some spelling variations:
trung tuan » trung thanh, trung tam, tran tuan
hieu lang » chieu sang, hieu quang, nhieu tang
trung cua » truong cua, trung cap, dung cua
tong cong » trong cong, cong cong, dung cong
hoi hieu » hoi phieu, hoi tieu, moi hieu
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoi hieu lang - thanh ((trung cua) or (trung tuan)) tong cong tan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoi hieu lang - thanh ((trung cua) OR (trung tuan)) tong cong tan toan ban*.