Perhaps you should try some spelling variations:
nganh cong » nhanh chong, thanh cong
hoc nganh » hoc nhanh
nhan taon » nhan trong, nhan thong, nhan tuong
cuu dong » cuu cong, cuu tong, cuu long
dong hoc » dong co, dong luc
cong hoc » cong hoa, cong coc, cong ho
nhan tao » nhan tai, nhan dan
vu manh » vu minh, vu anh, tu manh
manh ho » manh hon, minh hoa, danh hoa
ho tap » hoc tap, ho hap, ho tai
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: vu manh ho tap, nghien cuu dong hoc nganh cong hoc xa hoi va ((nhan taon) or (nhan tao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu manh ho tap, nghien cuu dong hoc nganh cong hoc xa hoi va ((nhan taon) OR (nhan tao)).
• Adding a wildcard symbol may retrieve word variants: vu manh ho tap, nghien cuu dong hoc nganh cong hoc xa hoi va ((nhan taon) or (nhan tao))*.