Perhaps you should try some spelling variations:
doanh thanh » danh thanh, doanh nhan, dinh thanh
luan phuong » lan phuong, quang phuong, doan phuong
phuong cong » phuong dong, phong cong, phung cong
hanh doanh » chinh doanh, doanh doanh, kinh doanh
hang doanh » nhung doanh, van doanh, dung doanh
theo hieu » theo chieu, theo tieu, thien hieu
hieu lang » chieu sang, hieu quang, nhieu tang
cong tac » cong ty
tac han » tac nhan, tac ha, tac can
han tap » han tai, toan tap, nhan tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo hieu lang - ((((hanh doanh) or (doanh thanh))) or (hang doanh)) luan phuong cong tac han tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo hieu lang - ((((hanh doanh) OR (doanh thanh))) OR (hang doanh)) luan phuong cong tac han tap.
• Adding a wildcard symbol may retrieve word variants: theo hieu lang - ((((hanh doanh) or (doanh thanh))) or (hang doanh)) luan phuong cong tac han tap*.