Perhaps you should try some spelling variations:
canh doanh » hanh doanh, chinh doanh, doanh doanh
hieu quang » thieu quang, hieu qua, diep quang
doanh luan » doanh nhan
hieu quan » hieu qua, lieu quan, thien quan
luan dung » lan dung, luan dong, luan hung
trong bai » trong ban, thong bai, trong hai
bai toan » bai tap
toan cau » toan cao, toan ban, toan tap

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) OR (hieu quan)) - canh doanh luan dung trong bai toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu quang) OR (hieu quan)) - canh doanh luan dung trong bai toan cau".
• Adding a wildcard symbol may retrieve word variants: ho ((hieu quang) OR (hieu quan)) - canh doanh luan dung trong bai toan cau*.