Perhaps you should try some spelling variations:
nhung huong » nhung phuong, nhung tuong, nhung cong
huong manh » duong manh, hung manh, luong manh
hieu lang » chieu sang, hieu quang, nhieu tang
doanh cua » doanh luan
manh toan » thanh toan, anh tuan, tinh toan
doi hieu » doi chieu, doc hieu, doi hien
doanh va » doan va, doanh tai, anh va
toan ban » van ban
hanh va » hang va, hanh vi

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

• If you are trying to use Boolean operators, they must be ALL CAPS: doi hieu lang - hanh ((((doanh va) OR (hanh va))) OR (doanh cua)) nhung huong manh toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi hieu lang - hanh ((((doanh va) OR (hanh va))) or (doanh cua)) nhung huong manh toan ban~".
• Adding a wildcard symbol may retrieve word variants: doi hieu lang - hanh ((((doanh va) OR (hanh va))) or (doanh cua)) nhung huong manh toan ban*.