Perhaps you should try some spelling variations:
doanh thuong » doan phuong, anh thuong, dinh thuong
thuong hoc » truong hoc, tuong hoc, thuong ho
hoa doanh » toan doanh, hoa dan
dinh hoc » sinh hoc, hinh hoc, dich hoc
tinh hoc » sinh hoc, tin hoc, hinh hoc
cuu cong » cua cong, thu cong, cac cong
cong hoa » dong hoa, dong hoc, hang hoa
cau phan » chau phan, cuu phan, cac phan
phan van » pham van, thanh van, luan van
hoi cau » hoi chu, hoc cau, hoa cau
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: quy ((dinh hoc) or (tinh hoc)) tap, nghien cuu cong hoa doanh thuong hoc xa hoi cau phan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: quy ((dinh hoc) OR (tinh hoc)) tap, nghien cuu cong hoa doanh thuong hoc xa hoi cau phan van.
• Adding a wildcard symbol may retrieve word variants: quy ((dinh hoc) or (tinh hoc)) tap, nghien cuu cong hoa doanh thuong hoc xa hoi cau phan van*.