Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, ho chieu
trung cap » truong cao, trung tam
trong tac » trong cac, tuong tac, trong tuc
trong tan » trong quan, trong cac, trong ca
cap dung » ap dung, cao dung, chan dung
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 - thanh trung cap dung ((trong tac) or (trong tan)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - thanh trung cap dung ((trong tac) OR (trong tan)) toan cau.
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - thanh trung cap dung ((trong tac) or (trong tan)) toan cau*.