Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh doanh » hang doanh, chinh doanh, doanh doanh
theo hieu » theo chieu, theo tieu, thien hieu
hieu lang » chieu sang, hieu quang, nhieu tang
doanh cua » doanh luan
cua nhung » va nhung
dan toan » dan than, manh toan, xuan toan
van toan » van tuan, van tan, van thanh

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 cua nhung cong ((dan toan) OR (van toan)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo hieu lang - hanh doanh cua nhung cong ((dan toan) OR (van toan)) cau".
• Adding a wildcard symbol may retrieve word variants: theo hieu lang - hanh doanh cua nhung cong ((dan toan) OR (van toan)) cau*.