Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
nhanh dong » hanh dong, nhanh chong, anh dong
toan cao » toan ban
toan tap » toan ban
cua sat » cua vat, cua luat, quan sat
cua san » cua ban, cua dan, ca san

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 - nhanh dong ((cua sat) OR (cua san)) cong trinh ((toan cao) OR (toan tap))~.
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - nhanh dong ((cua sat) or (cua san)) cong trinh ((toan cao) or (toan tap))*.