Perhaps you should try some spelling variations:
doanh khoa » toan khoa
chinh hoc » hinh hoc, chinh hoi, chinh quoc
hoc doanh » hoa doanh, hoc danh, hoc dan
te chinh » tai chinh
cuu tong » cuu cong, cuu tinh, huu tung
tong hoc » tuong hoc, thong hoc, trong hoc
khoa hoc » hoa hoc
hang tai » hang va, dung tai
toan tai » toan tap, doanh tai, toan ban
hoc mai » hoc ma, hoc dai, hoc bai
mai hoi » mai khoi, dai hoi, lai hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: te chinh hoc tap, nghien cuu tong hoc doanh khoa hoc mai hoi va ((hang tai) or (toan tai))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te chinh hoc tap, nghien cuu tong hoc doanh khoa hoc mai hoi va ((hang tai) OR (toan tai)).
• Adding a wildcard symbol may retrieve word variants: te chinh hoc tap, nghien cuu tong hoc doanh khoa hoc mai hoi va ((hang tai) or (toan tai))*.