Perhaps you should try some spelling variations:
trong doanh » trong nganh
hieu quang » thieu quang, hieu quan, hieu qua
doanh tuan » doanh luan, doan tuan, doanh quan
tranh cua » doanh cua, manh cua
trung cua » truong cua, trung tuan, trung cap
tuan cau » toan cau, quan cau, tuan cu
ho hieu » ho chieu, hoi hieu, nho hieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho hieu quang - hanh ((tranh cua) or (trung cua)) dung trong doanh tuan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu quang - hanh ((tranh cua) OR (trung cua)) dung trong doanh tuan cau.
• Adding a wildcard symbol may retrieve word variants: ho hieu quang - hanh ((tranh cua) or (trung cua)) dung trong doanh tuan cau*.