Perhaps you should try some spelling variations:
cua doanh » luat doanh, cua dang, cua dan
doanh hoa » doanh khoa, doanh hoan, danh hoa
hanh phan » thanh phan, hanh han, hanh nhan
tinh hoc » sinh hoc, tin hoc, hinh hoc
cuu dong » cuu cong, cuu tong, cuu long
dong cua » dung cua, cong cua, huong cua
anh phan » anh nhan, anh han, anh phap
tu tinh » tru tinh, tu tin, thue tinh
hoc xa » hoc ma
xa hoc » xa hoi, va hoc, xa hoa

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 dong cua doanh hoa hoc xa hoc ((anh phan) OR (hanh phan)) van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu tinh hoc tap, nghien cuu dong cua doanh hoa hoc xa hoc ((anh phan) OR (hanh phan)) van".
• Adding a wildcard symbol may retrieve word variants: tu tinh hoc tap, nghien cuu dong cua doanh hoa hoc xa hoc ((anh phan) OR (hanh phan)) van*.