Perhaps you should try some spelling variations:
doanh doanh » toan doanh, doanh hoan, doanh thanh
suat doanh » luat doanh, cua doanh, luat danh
cong suat » nang suat, cong san, cong cua
doanh hoc » danh hoc, doanh khoa, doanh hoan
hanh hoc » thanh hoc, hinh hoc, anh hoc
cuu cong » cua cong, thu cong, cac cong
nhan van » nhan dan, nhan va, phan van
tu hanh » du hanh, lu hanh, thuc hanh
va nhan » van nhan, ca nhan, va phan
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu hanh hoc tap, nghien cuu cong suat doanh doanh hoc ma hoi va nhan van~.
• Adding a wildcard symbol may retrieve word variants: tu hanh hoc tap, nghien cuu cong suat doanh doanh hoc ma hoi va nhan van*.