Perhaps you should try some spelling variations:
phuong cong » phong cong, phung cong, phuong hoang
phuong dong » phuong dung, phuong hoang, chuong duong
chieu xanh » chieu sach, chieu sang, chieu tinh
canh trang » canh tranh, hanh trang, banh trang
doi chieu » doc hieu, doi chi, ho chieu
trang va » tran van, hang va
phan cau » phan cac, phan tu, phan lap
phan dau » phan tu, hang dau

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu xanh - canh trang va ((phuong cong) or (phuong dong)) than ((phan cau) OR (phan dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - canh trang va ((phuong cong) OR (phuong dong)) than ((phan cau) OR (phan dau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu xanh - canh trang va ((phuong cong) or (phuong dong)) than ((phan cau) OR (phan dau))".
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - canh trang va ((phuong cong) or (phuong dong)) than ((phan cau) OR (phan dau))*.