Perhaps you should try some spelling variations:
luan phuong » lan phuong, quang phuong, doan phuong
doanh doanh » toan doanh, doanh hoan, doanh thanh
phuong dong » phuong dung, phuong hoang, chuong duong
hanh doanh » chinh doanh, kinh doanh, hanh dong
hang doanh » nhung doanh, van doanh, dung doanh
theo hieu » theo chieu, theo tieu, thien hieu
hieu lang » chieu sang, hieu quang, nhieu tang
dong tac » cong tac, dong tai, dong bac
tac nhan » tao nhan, cac nhan, dac nhan
nhan tai » hang tai, van tai, toan 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 doanh))) or (hang doanh)) luan phuong dong tac nhan tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo hieu lang - ((((hanh doanh) OR (doanh doanh))) OR (hang doanh)) luan phuong dong tac nhan tai.
• Adding a wildcard symbol may retrieve word variants: theo hieu lang - ((((hanh doanh) or (doanh doanh))) or (hang doanh)) luan phuong dong tac nhan tai*.