Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, hang cong
cua nhung » va nhung
anh tang » anh bang, anh nang, anh sang
anh dang » anh dong, anh dung, anh bang
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.

• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu tinh) OR (chieu sach)) - ((anh tang) OR (anh dang)) cua nhung cong tan toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu tinh) or (chieu sach)) - ((anh tang) OR (anh dang)) cua nhung cong tan toan cau~".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu tinh) or (chieu sach)) - ((anh tang) OR (anh dang)) cua nhung cong tan toan cau*.