Perhaps you should try some spelling variations:
hoc khuan » hoc phan, hoc khoa, hoc quan
thai tuan » khai tuan, thai tran, tai tuan
thai luan » thi luan, thai luat, phap luan
mach hoc » cach hoc, dich hoc, anh hoc
cuu dong » cuu cong, cuu tong, cuu long
dong hoc » dong co, dong luc
khoa hoc » hoa hoc
tu mach » tu cach, tu manh, tu hach
hoc xa » hoc ma

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu mach hoc tap, nghien cuu dong hoc khuan khoa hoc xa ((thai tuan) OR (thai luan)) pham van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu mach hoc tap, nghien cuu dong hoc khuan khoa hoc xa ((thai tuan) OR (thai luan)) pham van".
• Adding a wildcard symbol may retrieve word variants: tu mach hoc tap, nghien cuu dong hoc khuan khoa hoc xa ((thai tuan) OR (thai luan)) pham van*.