Perhaps you should try some spelling variations:
luan phuong » lan phuong, quang phuong, doan phuong
hanh doanh » hang doanh, chinh doanh, doanh doanh
doanh luan » doanh nhan
hieu lang » chieu sang, hieu quang, nhieu tang
trong anh » truong anh, trong doanh, trong thanh
doi hieu » doi chieu, doc hieu, doi hien
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi hieu lang - hanh doanh luan phuong ((trong anh) or (trong nganh)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi hieu lang - hanh doanh luan phuong ((trong anh) OR (trong nganh)) toan ban.
• Adding a wildcard symbol may retrieve word variants: doi hieu lang - hanh doanh luan phuong ((trong anh) or (trong nganh)) toan ban*.