Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
doi chieu » doc hieu, doi chi, ho chieu
tung tran » trung tran, hung tran, huong tran
tran hung » tran hong, tran quang, tran hoang
hung cong » nhung cong, hung cuong, phung cong
thanh lap » thanh san, phan lap, thanh hai
cong tan » cong tac, cong san, cong thanh
toan tap » toan ban

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 - thanh tung tran hung cong tan ((toan tap) or (thanh lap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - thanh tung tran hung cong tan ((toan tap) OR (thanh lap)).
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - thanh tung tran hung cong tan ((toan tap) or (thanh lap))*.