Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
truong cua » truong ca, truong quan, huong cua
truong cao » truong dai
thang dong » thang long, tang dong, thanh dong
hoc thieu » toc thieu, hoc hien
trung cua » trung tuan, trung cap, dung cua
dong doan » dong doanh, cong doan, dong don
doan tuan » doan quan, doanh luan, doan quang
tuan cau » toan cau, quan cau, tuan cu

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 cua) OR (truong cao)))) thang dong doan tuan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - thanh ((trung cua) OR (((truong cua) OR (truong cao)))) thang dong doan tuan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu sach - thanh ((trung cua) or (((truong cua) OR (truong cao)))) thang dong doan tuan cau".
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - thanh ((trung cua) or (((truong cua) OR (truong cao)))) thang dong doan tuan cau*.