Perhaps you should try some spelling variations:
nhanh trang » nhanh thang, nhanh trong, thanh trang
hieu quang » thieu quang, hieu quan, hieu qua
hanh trang » thanh trung, canh tranh, hanh trinh
dong trong » duong trong, dung trong, cong trong
trong sinh » trong kinh, trong san
hieu lang » chieu sang, nhieu tang, hieu van
sinh toan » tinh toan, hinh toan, minh toan
cua dong » chua dong, cua cong, cua dang
toan cau » toan cao, toan ban, toan tap

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: nho ((hieu lang) OR (hieu quang)) - ((hanh trang) OR (nhanh trang)) cua dong trong sinh toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "nho ((hieu lang) OR (hieu quang)) - ((hanh trang) or (nhanh trang)) cua dong trong sinh toan cau~".
• Adding a wildcard symbol may retrieve word variants: nho ((hieu lang) OR (hieu quang)) - ((hanh trang) or (nhanh trang)) cua dong trong sinh toan cau*.