Perhaps you should try some spelling variations:
nghien huu » nghien cuu, nguyen huu, nhiem huu
nhanh khoa » nhan khoa, nganh khoa, hang khoa
hoc nhanh » hoc nganh, hoc phan
thanh van » thanh san, thanh toan, thanh phan
mach hoc » cach hoc, dich hoc, anh hoc
huu tuan » huu han, huu tung
tuan hoc » toan hoc, luan hoc, than hoc
khoa hoc » hoa hoc
va thanh » gia thanh, ban thanh, va tinh
su mach » su sach
ma hoi » mai hoi, ma hoa, me hoi

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 huu tuan hoc nhanh khoa hoc ((ma hoi) OR (xa hoi)) va thanh van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su mach hoc tap, nghien huu tuan hoc nhanh khoa hoc ((ma hoi) OR (xa hoi)) va thanh van".
• Adding a wildcard symbol may retrieve word variants: su mach hoc tap, nghien huu tuan hoc nhanh khoa hoc ((ma hoi) OR (xa hoi)) va thanh van*.