Perhaps you should try some spelling variations:
nganh khung » nganh khong, nhanh hung
thuat sach » thuat lanh, thuat san
khung hoc » chung hoc, nhung hoc, thuong hoc
sach hoc » cach hoc, sach hoi, mach hoc
nhan dan » phan dau, gian dan, nhan tai
mon hoc » toan hoc, dong hoc
va nhan » van nhan, ca nhan, va phan
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: thuat sach hoc tap, nghien cuu ((mon hoc) or (hoa hoc)) nganh khung hoc xa hoi va nhan dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach hoc tap, nghien cuu ((mon hoc) OR (hoa hoc)) nganh khung hoc xa hoi va nhan dan.
• Adding a wildcard symbol may retrieve word variants: thuat sach hoc tap, nghien cuu ((mon hoc) or (hoa hoc)) nganh khung hoc xa hoi va nhan dan*.