Perhaps you should try some spelling variations:
chiet tach » chieu sach
truong cua » truong ca, truong quan, truong cao
trung cua » trung tuan, trung cap, dung cua
tong cong » trong cong, cong cong, dung cong
ho chiet » ho chieu, ho thiet, hoc thiet
cong dan » cong san, cong tan, huong dan
phan dau » phan tu, hang dau

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ho chiet tach - thanh ((trung cua) OR (truong cua)) tong cong dan ((phan lap) OR (phan dau))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chiet tach - thanh ((trung cua) OR (truong cua)) tong cong dan ((phan lap) or (phan dau))~".
• Adding a wildcard symbol may retrieve word variants: ho chiet tach - thanh ((trung cua) OR (truong cua)) tong cong dan ((phan lap) or (phan dau))*.