Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
thong cong » trong cong, tong cong, thong thong
doi chieu » doc hieu, doi chi, ho chieu
trung cap » truong cao, trung tam
cap thong » cap tong, chap thuong, phap thong
cong san » cong tac
phan cau » phan dau, phan cac, phan lap

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 thong cong san ((phan cau) or (phan tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - thanh trung cap thong cong san ((phan cau) OR (phan tu)).
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - thanh trung cap thong cong san ((phan cau) or (phan tu))*.