Perhaps you should try some spelling variations:
canh manh » lanh manh, canh tranh, cach mang
dong cong » duong cong, dung cong, dang cong
chi tinh » chai tinh, chi minh, chi binh
manh cua » doanh cua, ban cua
cua dong » chua dong, cua cong, cua dang
van phan » van phong, van thanh, luan phan
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi tinh - canh manh cua dong cong ((van phan) or (hai phong)) tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi tinh - canh manh cua dong cong ((van phan) OR (hai phong)) tu.
• Adding a wildcard symbol may retrieve word variants: doi chi tinh - canh manh cua dong cong ((van phan) or (hai phong)) tu*.