Perhaps you should try some spelling variations:
nhanh chong » thanh cong, khanh phong
nganh khong » nganh cong, nganh nong, nganh khoa
hach hoc » cach hoc, mach hoc, hoach hoi
cuu hoan » luu hoang, cuu van, cuu khoa
hoan hoc » hoa hoc, toan hoc, hoang hoa
nhan dan » phan dau, gian dan, nhan tai
tu hach » tu hanh, tu cach, tu sach
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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "tu hach hoc tap, nghien cuu hoan hoc ((nganh khong) OR (nhanh chong)) hoc xa hoi ca nhan dan~".
• Adding a wildcard symbol may retrieve word variants: tu hach hoc tap, nghien cuu hoan hoc ((nganh khong) OR (nhanh chong)) hoc xa hoi ca nhan dan*.