Perhaps you should try some spelling variations:
quang tuan » quang thanh, quan luan, quang cua
khong cang » thong cong, hong bang, thong cung
khong dung » thong dung, phuong dung, cuong dung
theo dieu » theo tieu, theo chieu, thuoc dieu
hung tuan » hung tran, trung tuan, hung thang
doan phan » doanh phan, toan phan, dan phan
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: theo dieu hanh - thanh ((hung tuan) OR (quang tuan)) ((khong cang) OR (khong dung)) doan phan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo dieu hanh - thanh ((hung tuan) or (quang tuan)) ((khong cang) OR (khong dung)) doan phan cau~".
• Adding a wildcard symbol may retrieve word variants: theo dieu hanh - thanh ((hung tuan) or (quang tuan)) ((khong cang) OR (khong dung)) doan phan cau*.