Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
thanh tung » thanh cong
nhung cong » dung cong, thong cong, hang cong
doi chieu » doc hieu, doi chi, ho chieu
thi nhung » thi nang, thi hong, thi huong
tung thi » tang thi, dung thi, tong thi
cong san » cong tac
than cau » phan cau, than cap, thanh chau
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 tung thi nhung cong san ((than cau) or (toan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu tinh - thanh tung thi nhung cong san ((than cau) OR (toan cau)).
• Adding a wildcard symbol may retrieve word variants: doi chieu tinh - thanh tung thi nhung cong san ((than cau) or (toan cau))*.