Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
theo chieu » ho chieu, theo chu, thi chieu
hanh tang » hanh trang, anh tang, hanh mang
cua nhung » va nhung
doanh cao » doanh co, doanh cho, doanh dao
doanh bao » doanh bat, doanh ban, doanh bac
tang cua » mang cua, hang cua, tang luan
cong van » cong vang, cong san, song van

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