Perhaps you should try some spelling variations:
doanh khoa » toan khoa
hoa doanh » toan doanh, hoa dan
danh nhan » doanh nhan, thanh nhan, benh nhan
sach hoi » sach doi, sach moi, cach thoi
mach hoc » cach hoc, dich hoc, anh hoc
khoa hoc » hoa hoc
hoi danh » hop danh, hoi dan, hoc danh
nhan va » nhan tai, nhan dan, nhan tao
hoc xa » hoc ma

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach hoi) OR (mach hoc)) tap, nghien cuu van hoa doanh khoa hoc xa hoi danh nhan va~.
• Adding a wildcard symbol may retrieve word variants: tu ((sach hoi) or (mach hoc)) tap, nghien cuu van hoa doanh khoa hoc xa hoi danh nhan va*.