Perhaps you should try some spelling variations:
doanh trong » doanh tong, doanh thuong, dinh trong
nghien thu » nghiem thuc, nghiep thuc, nghien cuu
hoa doanh » toan doanh, hoa dan
trong hoc » truong hoc, tuong hoc, thong hoc
trac toan » tranh toan, tap toan, tam toan
cong hoa » dong hoa, dong hoc, hang hoa
toan tai » toan tap, doanh tai, toan ban
su sach » so sach
vu sach » vu bach, vu khach
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) or (vu sach)) hoi trac, nghien thu cong hoa doanh trong hoc xa hoi trac toan tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (vu sach)) hoi trac, nghien thu cong hoa doanh trong hoc xa hoi trac toan tai.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (vu sach)) hoi trac, nghien thu cong hoa doanh trong hoc xa hoi trac toan tai*.