Perhaps you should try some spelling variations:
trung tuan » trung thanh, trung tam, truong thanh
tran tuan » tran xuan, tran quang, tran thanh
chu tinh » chau tinh, chua tinh, cuu tinh
cong tan » cong tac, cong san, cong thanh
tan than » tan thanh, tan tran, ban than
than cao » toan cao, thai cao, than cap
ho chu » hoi chu, cho chu, ho chua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chu tinh - thanh ((trung tuan) or (tran tuan)) trong cong tan than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chu tinh - thanh ((trung tuan) OR (tran tuan)) trong cong tan than cao*.