Perhaps you should try some spelling variations:
doanh hoan » doanh doanh, doanh khoa, doanh nhan
dung khoa » dung cho
van dung » van dong, xay dung, tin dung
luan ket » lien ket
lan dieu » luan dieu, han dieu, nhan dieu
ket lan » ket van, xet lan, ket doan
thien » thieu, tien, hien

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

• Performing a fuzzy search may retrieve terms with similar spellings: van dung khoa luan ket lan dieu tri (kinh or dinh) doanh hoan thien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: van dung khoa luan ket lan dieu tri (kinh OR dinh) doanh hoan thien.
• Adding a wildcard symbol may retrieve word variants: van dung khoa luan ket lan dieu tri (kinh or dinh) doanh hoan thien*.