Perhaps you should try some spelling variations:
canh manh » lanh manh, canh tranh, cach mang
cong cong » cong dong, trong cong, dung cong
doc hieu » toc thieu, hoc thieu
manh cua » doanh cua, ban cua
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doc hieu) OR (hoc hien)) xanh - canh manh cua cong cong dan toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doc hieu) OR (hoc hien)) xanh - canh manh cua cong cong dan toan ban*".