Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
va phuong » va thuong, cac phuong
anh tang » anh bang, anh dang, anh nang
cong tac » cong ty
toan cau » toan cao, toan tap, toan tai
toan ban » van ban
tang va » trang va, tang van, thang va

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu xanh - anh tang va phuong cong tac ((toan cau) OR (toan ban))~".
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - anh tang va phuong cong tac ((toan cau) OR (toan ban))*.