Perhaps you should try some spelling variations:
nghien cua » nghien cuu, nghiep cua, nghiep vua
doanh hoan » doanh doanh, doanh khoa, doanh nhan
hoc doanh » hoa doanh, hoc danh, hoc dan
cong hoc » dong hoc, cong hoa, cong coc
hoan hoc » hoa hoc, toan hoc, hoang hoa
van tinh » van thinh, van minh, ban tinh
su sach » vu sach
so sach » so sanh, bo sach, co sach
hoi tai » hoc tai, hoi trac
hai van » thai van, ha van, hai tan
hoc xa » hoc ma
xa hai » xa thai, xua hai, xa hoi
toan » tran

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) OR (so sach)) hoi tai, nghien cua cong hoc doanh hoan hoc xa hai van tinh toan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (so sach)) hoi tai, nghien cua cong hoc doanh hoan hoc xa hai van tinh toan".
• Adding a wildcard symbol may retrieve word variants: ((su sach) OR (so sach)) hoi tai, nghien cua cong hoc doanh hoan hoc xa hai van tinh toan*.