Perhaps you should try some spelling variations:
canh manh » lanh manh, canh tranh, cach mang
dang cong » dung cong
khoan cam » khoa cam, khoan va, phan cam
ho chieu » theo chieu, hoc thieu, doi chieu
manh cua » doanh cua, ban cua
cua dang » cua cong, cua ban
cong cac » cuong cac, cong tac, cong cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (theo tieu)) xanh - canh manh cua dang cong cac khoan cam~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo tieu)) xanh - canh manh cua dang cong cac khoan cam*.