Perhaps you should try some spelling variations:
hieu quang » thieu quang, hieu quan, hieu qua
hanh trang » thanh trung, canh tranh, hanh trinh
dong duong » tuong duong, cuong duong, dong thong
duong sinh » duong minh, duong manh, trong sinh
hieu lang » chieu sang, nhieu tang, hieu van
hanh mang » nhanh mang, nhanh lang, thanh hang
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.

• Performing a fuzzy search may retrieve terms with similar spellings: nho ((hieu lang) OR (hieu quang)) - ((hanh mang) or (hanh trang)) cua dong duong sinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: nho ((hieu lang) OR (hieu quang)) - ((hanh mang) OR (hanh trang)) cua dong duong sinh toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "nho ((hieu lang) OR (hieu quang)) - ((hanh mang) or (hanh trang)) cua dong duong sinh toan cau".
• Adding a wildcard symbol may retrieve word variants: nho ((hieu lang) OR (hieu quang)) - ((hanh mang) or (hanh trang)) cua dong duong sinh toan cau*.