Perhaps you should try some spelling variations:
canh manh » lanh manh, canh tranh, cach mang
manh cua » doanh cua, ban cua
cua dung » cua dang, cua dong, qua dung
cong san » cong tac
phan cau » phan dau, phan cac, phan tu
ho chau » ha chau, o chau, khoa chau
ho chu » hoi chu, cho chu, ho chua

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chau) OR (ho chu)) tinh - canh manh cua dung ((huong dan) or (cong san)) phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chau) OR (ho chu)) tinh - canh manh cua dung ((huong dan) OR (cong san)) phan cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chau) OR (ho chu)) tinh - canh manh cua dung ((huong dan) or (cong san)) phan cau*".