Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
hien xanh » hien hanh, hien nhanh, chieu xanh
tranh cua » doanh cua, manh cua
cua trung » cua truong, xuan trung, cua nhung
thanh cac » hanh cac, thanh ca, tranh cac
thanh bac » nhanh bac, thanh bai, thanh san
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: hoc hien xanh - hanh tranh cua trung ((cong dan) OR (huong dan)) ((thanh cac) OR (thanh bac))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien xanh - hanh tranh cua trung ((cong dan) or (huong dan)) ((thanh cac) OR (thanh bac))~".
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - hanh tranh cua trung ((cong dan) or (huong dan)) ((thanh cac) OR (thanh bac))*.