Perhaps you should try some spelling variations:
chieu sach » chinh sach, chieu sang, chieu xanh
quang tran » quang tuan, quang trung, quang thanh
quang cong » quang cuong, quang dong, quang hoang
anh quang » anh xquang, anh quan, nhanh quang
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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chiet tach) OR (chieu sach)) - anh quang tran quang cong tac toan cau~".
• Adding a wildcard symbol may retrieve word variants: doi ((chiet tach) OR (chieu sach)) - anh quang tran quang cong tac toan cau*.