Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
dinh trung » sinh trung, dinh trong, kinh trung
thanh dung » thanh duong, thanh tung, thanh hung
doi chieu » doc hieu, doi chi, ho chieu
dung cong » dung trong
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.

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sach - ((dinh trung) or (canh tranh)) thanh dung cong tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - ((dinh trung) OR (canh tranh)) thanh dung cong tan toan cau*.