Perhaps you should try some spelling variations:
nganh khoa » nganh hoa, nganh khong, anh khoa
doanh khoa » toan khoa
manh hoc » anh hoc, manh ho, manh hon
nhan dan » phan dau, gian dan, nhan tai
tu manh » tu minh, tu hanh, vu manh
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
hoc xa » hoc ma
hoi ca » hoi cua, hoi cac, hoi cau

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 mon hoc ((nganh khoa) or (doanh khoa)) hoc xa hoi ca nhan dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu manh hoc tap, nghien cuu mon hoc ((nganh khoa) OR (doanh khoa)) hoc xa hoi ca nhan dan.
• Adding a wildcard symbol may retrieve word variants: tu manh hoc tap, nghien cuu mon hoc ((nganh khoa) or (doanh khoa)) hoc xa hoi ca nhan dan*.