Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
chung cong » chong cong, phung cong, chung thong
nhung cong » dung cong, thong cong, hang cong
cho xanh » cho doanh, cho thanh, cho sinh
than cau » toan cau, phan cau, than cap
khan dam » thanh dam, chang dam, khanh nam
cao cho » cap cho, cao chat

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

• If you are trying to use Boolean operators, they must be ALL CAPS: cao cho xanh - hanh trinh luat ((chung cong) OR (nhung cong)) dan ((than cau) OR (khan dam))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "cao cho xanh - hanh trinh luat ((chung cong) OR (nhung cong)) dan ((than cau) or (khan dam))~".
• Adding a wildcard symbol may retrieve word variants: cao cho xanh - hanh trinh luat ((chung cong) OR (nhung cong)) dan ((than cau) or (khan dam))*.