Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
hanh trinh » canh tranh, hanh chinh
chieu xanh » chieu sach, chieu sang, chieu tinh
thanh toan » thanh hoa, thanh san, tinh toan
hieu lang » chieu sang, hieu quang, nhieu tang
va phuong » va thuong, cac phuong
manh toan » anh tuan, tinh toan
trinh va » trinh van, trinh vat, trinh ve

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