Perhaps you should try some spelling variations:
chiet tach » chieu sach
trung tuan » trung thanh, trung tam, tran tuan
hoc chiet » hoc thiet, hoc nhiet, hoc hien
trung cua » truong cua, trung cap, dung cua
hang cong » dang cong, hang nong, bang cong
dung cong » dung trong
danh hanh » danh thanh, dang hanh, dan hanh
hanh cac » hang cac, hanh cat, nhanh cay

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chiet tach - thanh ((trung cua) or (trung tuan)) ((hang cong) or (dung cong)) danh hanh cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chiet tach - thanh ((trung cua) OR (trung tuan)) ((hang cong) OR (dung cong)) danh hanh cac.
• Adding a wildcard symbol may retrieve word variants: hoc chiet tach - thanh ((trung cua) or (trung tuan)) ((hang cong) or (dung cong)) danh hanh cac*.