Perhaps you should try some spelling variations:
nghien cua » nghien cuu, nghiep cua, nghiep vua
doanh hoan » doanh doanh, doanh khoa, doanh nhan
thanh toan » thanh hoa, thanh san, tinh toan
hoc doanh » hoa doanh, hoc danh, hoc dan
tan thanh » tran thanh, tang thanh, toan thanh
cong hoc » dong hoc, cong hoa, cong coc
hoan hoc » hoa hoc, toan hoc, hoang hoa
su sach » so sach, vu sach
hoi tai » hoc tai
hai tan » hai van, hai quan
hoc xa » hoc ma
xa hai » xa thai, xua hai, xa hoi

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 ((hoi tai) or (hoi trac)), nghien cua cong hoc doanh hoan hoc xa hai tan thanh toan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((hoi tai) OR (hoi trac)), nghien cua cong hoc doanh hoan hoc xa hai tan thanh toan.
• Adding a wildcard symbol may retrieve word variants: su sach ((hoi tai) or (hoi trac)), nghien cua cong hoc doanh hoan hoc xa hai tan thanh toan*.