Perhaps you should try some spelling variations:
cang thang » dang thanh
cong thanh » dong thanh, cong trinh, cong tan
dung cong » dung trong
tran chau » tranh chap, tran huu
chao chu » cho chu, cao cho, chao xu
van dung » van dong, xay dung, tin dung
cong san » cong tac
san tran » tan tran, ban tran, dang tran
cua chu » sua chua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((chao chu) or (cua chu)) xanh - ((cang thang) OR (cong thanh)) van dung cong san tran chau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((chao chu) OR (cua chu)) xanh - ((cang thang) OR (cong thanh)) van dung cong san tran chau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((chao chu) or (cua chu)) xanh - ((cang thang) OR (cong thanh)) van dung cong san tran chau".
• Adding a wildcard symbol may retrieve word variants: ((chao chu) or (cua chu)) xanh - ((cang thang) OR (cong thanh)) van dung cong san tran chau*.