Perhaps you should try some spelling variations:
nhanh thang » nhanh thanh, nhanh quang, hanh trang
chieu sang » chieu sach, chieu xanh, hieu lang
ho chieu » theo chieu, hoc thieu, doi chieu
va thong » va thuong, va phuong, he thong
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
phan cau » phan dau, phan cac, phan tu

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 sang - ((dinh thanh) OR (nhanh thang)) va thong ((cong dan) OR (cong san)) phan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sang - ((dinh thanh) or (nhanh thang)) va thong ((cong dan) OR (cong san)) phan cau~".
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - ((dinh thanh) or (nhanh thang)) va thong ((cong dan) OR (cong san)) phan cau*.