Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
trung tuan » trung thanh, trung tam, tran tuan
doi chieu » doc hieu, doi chi, ho chieu
trung cap » truong cao, trung tam
dung cong » dung trong
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu tinh - thanh ((trung cap) or (trung tuan)) dung cong tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu tinh - thanh ((trung cap) OR (trung tuan)) dung cong tan toan cau.
• Adding a wildcard symbol may retrieve word variants: doi chieu tinh - thanh ((trung cap) or (trung tuan)) dung cong tan toan cau*.