Perhaps you should try some spelling variations:
nganh khung » nganh khong, nhanh hung
hoc nganh » hoc nhanh
khung hoc » chung hoc, nhung hoc, thuong hoc
sach hoc » cach hoc, sach hoi, mach hoc
benh hoc » sinh hoc
nhan dan » phan dau, gian dan, nhan tai
va nhan » van nhan, ca nhan, va phan
mo hoc » mon hoc, co hoc
ma hoi » mai hoi, xa hoi, ma hoa

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach hoc) OR (benh hoc)) tap, nghien cuu mo hoc nganh khung hoc ma hoi va nhan dan~.
• Adding a wildcard symbol may retrieve word variants: tu ((sach hoc) or (benh hoc)) tap, nghien cuu mo hoc nganh khung hoc ma hoi va nhan dan*.