Perhaps you should try some spelling variations:
thang doanh » hang doanh, toan doanh, trong doanh
doanh doanh » toan doanh, doanh hoan, doanh thanh
thieu sach » thien hach, hieu cach, theo sach
chieu sach » chinh sach, chiet tach, chieu sang
truong cua » truong ca, truong quan, truong cao
doanh tuan » doanh luan, doan tuan, doanh quan
trung cua » trung tuan, trung cap, dung cua
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) OR (chieu sach)) - thanh ((trung cua) or (truong cua)) thang doanh doanh tuan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu sach) OR (chieu sach)) - thanh ((trung cua) OR (truong cua)) thang doanh doanh tuan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu sach) OR (chieu sach)) - thanh ((trung cua) or (truong cua)) thang doanh doanh tuan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu sach) OR (chieu sach)) - thanh ((trung cua) or (truong cua)) thang doanh doanh tuan cau*.