Perhaps you should try some spelling variations:
hieu quang » thieu quang, hieu quan, hieu qua
nhanh lang » nhanh quang, nhanh thang, nhan dang
hieu lang » chieu sang, nhieu tang, hieu van
hanh mang » nhanh mang, hanh trang, thanh hang
dung cong » dung trong
cong danh » cuong danh, cong dan, cong thanh
danh toan » manh toan, anh toan, dan toan
cua dung » cua dang, cua dong, qua dung
toan tap » toan ban

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: ho ((hieu lang) OR (hieu quang)) - ((hanh mang) OR (nhanh lang)) cua dung cong danh toan tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu lang) OR (hieu quang)) - ((hanh mang) or (nhanh lang)) cua dung cong danh toan tap~".
• Adding a wildcard symbol may retrieve word variants: ho ((hieu lang) OR (hieu quang)) - ((hanh mang) or (nhanh lang)) cua dung cong danh toan tap*.