Perhaps you should try some spelling variations:
doanh trong » doanh tong, doanh thuong, dinh trong
nghiep thuc » nghiem thuc, nghiem thuoc, nghe thuc
hoan doanh » toan doanh, hoa doanh, doanh doanh
nghien thu » nghiem thuc, nghien cuu, nghe thu
trong hoc » truong hoc, tuong hoc, thong hoc
sach thoi » cach thoi, sach hoi, sach tham
cong hoan » cong hoa, dong hoa, cong san
tai toan » bai toan, tap toan, tai tuan
toan tai » toan tap, doanh tai, toan ban
thoi tai » thoi dai, phoi tai, tuoi tai
hoi tai » hoc tai, hoi trac
su sach » so sach, vu sach
hoc xa » hoc ma

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 thoi tai, ((nghien thu) OR (nghiep thuc)) cong hoan doanh trong hoc xa hoi tai toan tai~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach thoi tai, ((nghien thu) OR (nghiep thuc)) cong hoan doanh trong hoc xa hoi tai toan tai".
• Adding a wildcard symbol may retrieve word variants: su sach thoi tai, ((nghien thu) OR (nghiep thuc)) cong hoan doanh trong hoc xa hoi tai toan tai*.