Perhaps you should try some spelling variations:
thanh tuong » thanh thuong, thanh tung, thanh huong
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
duong cong » dung cong, luong cong, duong trong
tuong cua » truong cua, huong cua, thong cua
cua duong » cua dong, cua huong, qua duong
khoan cam » khoa cam, khoan va, phan cam
thanh lap » thanh san, phan lap, thanh hai
cong ban » cong bang, cong san, cong tan

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 - thanh tuong cua duong cong ban ((khoan cam) OR (thanh lap))~.
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - thanh tuong cua duong cong ban ((khoan cam) or (thanh lap))*.