Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
nhung cong » dung cong, thong cong, hang cong
doi chieu » doc hieu, doi chi, ho chieu
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cau » toan cao, toan ban, toan tap
anh va » hanh va

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

• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu tinh - canh ((anh va) OR (((dinh van) OR (sinh vat)))) nhung cong dan toan cau~.
• Adding a wildcard symbol may retrieve word variants: doi chieu tinh - canh ((anh va) or (((dinh van) or (sinh vat)))) nhung cong dan toan cau*.