Perhaps you should try some spelling variations:
doanh khoa » toan khoa
khoa thien » hoan thien, thua thien, khoa than
cho tieng » chi tieng, nho tieng, khoa tieng
dat quang » dau quang, chat quang, dang quang
tieu luat » hieu luat, tieu luan, trieu suat
luat kinh » qua kinh, luoc kinh, xuan kinh
van dung » van dong, xay dung, tin dung
dat luan » dan luan, dau luan, bai luan

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

• Performing a fuzzy search may retrieve terms with similar spellings: van dung cho tieng ((dat luan) OR (dat quang)) tieu luat kinh doanh khoa thien~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "van dung cho tieng ((dat luan) OR (dat quang)) tieu luat kinh doanh khoa thien".
• Adding a wildcard symbol may retrieve word variants: van dung cho tieng ((dat luan) OR (dat quang)) tieu luat kinh doanh khoa thien*.