Perhaps you should try some spelling variations:
cho doanh » hoa doanh
dong cong » duong cong, dung cong, dang cong
cho xanh » cho thanh, cho sinh, cho hang
xanh cua » manh cua, anh cua, canh cua
hanh cua » manh cua, hang cua, hanh sua
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: cao ((cho xanh) OR (cho doanh)) - hoang ((xanh cua) or (hanh cua)) dong cong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cao ((cho xanh) OR (cho doanh)) - hoang ((xanh cua) OR (hanh cua)) dong cong dan toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "cao ((cho xanh) OR (cho doanh)) - hoang ((xanh cua) or (hanh cua)) dong cong dan toan ban".
• Adding a wildcard symbol may retrieve word variants: cao ((cho xanh) OR (cho doanh)) - hoang ((xanh cua) or (hanh cua)) dong cong dan toan ban*.