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
hanh trinh » canh tranh, hanh chinh
cua phuong » cuu phuong, cuc phuong, luan phuong
trinh toan » tinh toan, thanh toan, trinh han
trinh cua » tinh cua, trinh luat, trinh quan
tich toan » tinh toan, tich than, tich hoat
hach toan » thanh toan, manh toan

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: theo chieu xanh - hanh trinh cua phuong cong ((((tich toan) OR (trinh toan))) OR (hach toan)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu xanh - hanh trinh cua phuong cong ((((tich toan) OR (trinh toan))) or (hach toan)) cau~".
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - hanh trinh cua phuong cong ((((tich toan) OR (trinh toan))) or (hach toan)) cau*.