Perhaps you should try some spelling variations:
nganh cong » nhanh chong, thanh cong
hoc nganh » hoc nhanh
nhan tain » nhan dan, nhan tao, han tai
manh hoc » anh hoc, manh ho, manh hon
cong hoc » dong hoc, cong hoa, cong coc
nhan tai » hang tai, van tai, toan tai
tu manh » tu minh, tu hanh, vu manh
cuu mot » cua mot, cuu mo, huu mot
mot hoc » mon hoc, mo hoc, mot goc
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: tu manh hoc tap, nghien cuu mot hoc nganh cong hoc xa hoi va ((nhan tain) or (nhan tai))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu manh hoc tap, nghien cuu mot hoc nganh cong hoc xa hoi va ((nhan tain) OR (nhan tai)).
• Adding a wildcard symbol may retrieve word variants: tu manh hoc tap, nghien cuu mot hoc nganh cong hoc xa hoi va ((nhan tain) or (nhan tai))*.