Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
hang hang » cang thang, hung thang, lang thang
nang hang » nang sang, cang thang, lang thang
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
chay cao » cay cao, chat cao, nha cao
va bang » va nang, va lang, va ban

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 - ((hang hang) OR (nang hang)) va bang ((cong dan) OR (cong tan)) chay cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu xanh - ((hang hang) or (nang hang)) va bang ((cong dan) OR (cong tan)) chay cao~".
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - ((hang hang) or (nang hang)) va bang ((cong dan) OR (cong tan)) chay cao*.