Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
trung hung » trong hung, truong chung, truong huong
trung dung » ung dung, trung uong, trinh dung
doi chieu » doc hieu, doi chi, mot chieu
anh xuan » anh tuan, thanh xuan, anh xquang
anh quan » anh tuan, ban quan, anh nhan
cong tac » cong ty
tac toan » tap toan, tam toan, hach 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 sach - ((anh xuan) or (anh quan)) ((trung hung) OR (trung dung)) cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - ((anh xuan) OR (anh quan)) ((trung hung) OR (trung dung)) cong tac toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - ((anh xuan) or (anh quan)) ((trung hung) OR (trung dung)) cong tac toan cau".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - ((anh xuan) or (anh quan)) ((trung hung) OR (trung dung)) cong tac toan cau*.