Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
hoc thieu » toc thieu, hoc hien
tranh cua » doanh cua, manh cua
thoai cac » tai cac, thong cac, tho cac
ho chieu » theo chieu, doi chieu, mot chieu
cua dong » chua dong, cua cong, cua dang
cong dan » cong san, cong tan, cong dong

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) OR (hoc thieu)) xanh - hanh tranh cua dong ((cong dan) OR (huong dan)) thoai cac~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (hoc thieu)) xanh - hanh tranh cua dong ((cong dan) or (huong dan)) thoai cac~".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) OR (hoc thieu)) xanh - hanh tranh cua dong ((cong dan) or (huong dan)) thoai cac*.