Perhaps you should try some spelling variations:
nghien cua » nghien cuu, nghiep cua, nghiep vua
thanh nhan » thanh phan, thanh san, thanh toan
hoc nhanh » hoc nganh, hoc phan
thong hoa » thong khoa, thong ha, thong hoi
thong hoc » thuong hoc, tuong hoc, thong hoi
hoi thanh » hoc thanh, hai thanh, hoa thanh
mach hoc » cach hoc, dich hoc, anh hoc
cong hoc » dong hoc, cong hoa, cong coc
nhan van » nhan dan, nhan va, phan van
su mach » su sach

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

• Performing a fuzzy search may retrieve terms with similar spellings: su mach hoc tap, nghien cua cong hoc nhanh ((thong hoa) or (thong hoc)) xa hoi thanh nhan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su mach hoc tap, nghien cua cong hoc nhanh ((thong hoa) OR (thong hoc)) xa hoi thanh nhan van*.