Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
truong cao » truong dai
thang dong » thang long, tang dong, thanh dong
dong doanh » dung doanh, trong doanh, doanh doanh
doanh tuan » doanh luan, doan tuan, doanh quan
hoc thieu » toc thieu, hoc hien
trung cua » truong cua, trung tuan, trung cap
tuan cu » tuan tu, quan cua, tuan thu

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu sach - thanh ((trung cua) or (truong cao)) thang dong doanh tuan cu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - thanh ((trung cua) OR (truong cao)) thang dong doanh tuan cu.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - thanh ((trung cua) or (truong cao)) thang dong doanh tuan cu*.