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