Perhaps you should try some spelling variations:
doanh doanh » toan doanh, doanh thanh, dong doanh
doanh hoan » doanh khoa, doanh nhan, doanh luan
tieu than » tieu nhan, tieu tham, tieu chuan
nhan dan » phan dau, gian dan, nhan tai
dan khoa » dang khoa, da khoa, san khoa
luan ket » lien ket
qua tieu » luan tieu
kinh » dinh, minh

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

• Performing a fuzzy search may retrieve terms with similar spellings: nhan dan khoa luan ket qua tieu than kinh ((doanh hoan) or (doanh doanh)) hien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: nhan dan khoa luan ket qua tieu than kinh ((doanh hoan) OR (doanh doanh)) hien.
• Adding a wildcard symbol may retrieve word variants: nhan dan khoa luan ket qua tieu than kinh ((doanh hoan) or (doanh doanh)) hien*.