Perhaps you should try some spelling variations:
thanh cuong » thanh chuong, thanh cong, thanh huong
khi xanh » khia canh, thi hanh, thi anh
cong san » cong tac
san than » sang than, san thanh, ban than
than cau » toan cau, phan cau, than cap
ha cong » hoa cong, ha dong, ha long
va cong » tai cong, cua cong

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi khi xanh - thanh cuong ((ha cong) OR (va cong)) cong san than cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi khi xanh - thanh cuong ((ha cong) OR (va cong)) cong san than cau".
• Adding a wildcard symbol may retrieve word variants: doi khi xanh - thanh cuong ((ha cong) OR (va cong)) cong san than cau*.