Perhaps you should try some spelling variations:
cong thanh » cong trinh, cong tan, truong thanh
dong thanh » truong thanh
tieu xanh » tieu danh, chieu xanh, dieu hanh
thanh ban » thanh san, thanh van, thanh bac
quang cao » nang cao, quang nam
cua dong » chua dong, cua cong, cua dang
quan cao » quan cau, quan ao, juan cao
ban cua » ban quan

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu xanh - thanh ban cua dong ((cong thanh) or (dong thanh)) ((quan cao) or (quang cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - thanh ban cua dong ((cong thanh) OR (dong thanh)) ((quan cao) OR (quang cao)).
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - thanh ban cua dong ((cong thanh) or (dong thanh)) ((quan cao) or (quang cao))*.