Perhaps you should try some spelling variations:
trung tuan » trung thanh, trung tam, tran tuan
truong cua » truong ca, truong quan, truong cao
hang cong » dang cong, hang nong, bang cong
chi danh » chi dan, chi anh, chi dinh
chi hanh » chi nhanh, chi thanh, thi hanh
cong tan » cong tac, cong san, cong thanh
tran tap » toan tap, tran tan, tran tuan

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chi danh) or (chi hanh)) - thanh ((trung tuan) or (truong cua)) hang cong tan tran tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chi danh) OR (chi hanh)) - thanh ((trung tuan) OR (truong cua)) hang cong tan tran tap.
• Adding a wildcard symbol may retrieve word variants: doi ((chi danh) or (chi hanh)) - thanh ((trung tuan) or (truong cua)) hang cong tan tran tap*.