Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
canh trinh » canh tranh, hanh trinh, anh trinh
luong quan » thong quan, duong qua
dung quang » dang quang, dung quan, luong quang
canh tinh » hanh tinh, manh tinh, canh tranh
nhanh cau » nhanh cay, thanh chau, nhanh ha
ho chieu » theo chieu, hoc thieu, doi chieu
va hung » va nhung, van hung, va huong

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 chieu xanh - ((canh trinh) OR (canh tinh)) va hung ((luong quan) OR (dung quang)) nhanh cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu xanh - ((canh trinh) OR (canh tinh)) va hung ((luong quan) or (dung quang)) nhanh cau~".
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - ((canh trinh) OR (canh tinh)) va hung ((luong quan) or (dung quang)) nhanh cau*.