Perhaps you should try some spelling variations:
nhung cong » dung cong, hang cong, nhung don
theo chieu » ho chieu, theo chu, thi chieu
thong cong » trong cong, tong cong, thong thong
hanh tang » hanh trang, anh tang, hanh mang
van doanh » toan doanh, van dong, van thanh
doanh cao » doanh co, doanh bao, doanh cho
tang cua » mang cua, hang cua, tang luan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chieu) or (theo tieu)) xanh - hanh tang cua ((nhung cong) OR (thong cong)) van doanh cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (theo tieu)) xanh - hanh tang cua ((nhung cong) OR (thong cong)) van doanh cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) or (theo tieu)) xanh - hanh tang cua ((nhung cong) OR (thong cong)) van doanh cao".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (theo tieu)) xanh - hanh tang cua ((nhung cong) OR (thong cong)) van doanh cao*.