Perhaps you should try some spelling variations:
nhung luong » hung luong, nhung huong, nhung tuong
luong manh » duong manh, luong thanh, duong minh
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, hanh va
toan cau » toan cao, toan ban, toan tap

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

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