Perhaps you should try some spelling variations:
nhung cong » dung cong, hang cong, nhung don
chien xanh » chieu xanh, chien tranh, hien hanh
thong cong » trong cong, tong cong, thong thong
can chien » van chien, cac chien, tran chien
anh han » anh nhan, anh phan, hanh han
han cua » hang cua, nhan cua, than cua

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: can chien xanh - anh han cua ((nhung cong) OR (thong cong)) dan ((toan ban) OR (van ban))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "can chien xanh - anh han cua ((nhung cong) OR (thong cong)) dan ((toan ban) or (van ban))~".
• Adding a wildcard symbol may retrieve word variants: can chien xanh - anh han cua ((nhung cong) OR (thong cong)) dan ((toan ban) or (van ban))*.