Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
dung cong » dung trong
manh cua » doanh cua
cong dan » cong san, cong tan, huong dan
ban cua » ban quan
chan tu » phan tu, chon tu, chai tu
han tu » phan tu, hanh tu, ban tu

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 - cach ((manh cua) OR (ban cua)) dung cong dan ((chan tu) OR (han tu))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu xanh - cach ((manh cua) or (ban cua)) dung cong dan ((chan tu) OR (han tu))~".
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - cach ((manh cua) or (ban cua)) dung cong dan ((chan tu) OR (han tu))*.