Perhaps you should try some spelling variations:
doanh khoa » toan khoa
hoa doanh » toan doanh, hoa dan
tinh hoc » sinh hoc, tin hoc, hinh hoc
cuu cong » cua cong, thu cong, cac cong
cong hoa » dong hoa, dong hoc, hang hoa
khoa hoc » hoa hoc
hoc doan » hoc dai, hoc phan, hoc hoa
phan van » pham van, thanh van, luan van
tu tinh » tru tinh, tu tin, thue tinh
hoc mon » hoc moi, hoc mot, hoc cong

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu tinh hoc tap, nghien cuu cong hoa doanh khoa hoc mon ((hoc doan) OR (hoc dan)) phan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu tinh hoc tap, nghien cuu cong hoa doanh khoa hoc mon ((hoc doan) OR (hoc dan)) phan van".
• Adding a wildcard symbol may retrieve word variants: tu tinh hoc tap, nghien cuu cong hoa doanh khoa hoc mon ((hoc doan) OR (hoc dan)) phan van*.