Perhaps you should try some spelling variations:
trinh thanh » tinh thanh, trinh han, trinh toan
thanh toan » thanh hoa, thanh san, tinh toan
toan thue » toan thuc, toan thiet, tuan thu
thue dong » thu dong, thuy dong, thuyet dong
cua luong » cua huong, chat luong, cua truong
cu luong » cat luong, huy luong, do luong

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "cong trinh thanh toan thue dong ((cua luong) OR (cu luong))~".
• Adding a wildcard symbol may retrieve word variants: cong trinh thanh toan thue dong ((cua luong) OR (cu luong))*.