Perhaps you should try some spelling variations:
thanh tung » thanh cong
chieu sach » chinh sach, chiet tach, chieu sang
tuong doan » trong doanh, phuong doan, truong toan
minh tuan » anh tuan
cua nhung » va nhung
tuong dan » huong dan, tung dan, xuong dan
ho chieu » theo chieu, hoc thieu, doi chieu
phan cau » phan dau, phan cac, phan tu

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 chieu sach - ((minh tuan) OR (thanh tung)) cua nhung ((tuong doan) OR (tuong dan)) phan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - ((minh tuan) or (thanh tung)) cua nhung ((tuong doan) OR (tuong dan)) phan cau~".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - ((minh tuan) or (thanh tung)) cua nhung ((tuong doan) OR (tuong dan)) phan cau*.