Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
cong thanh » dong thanh, cong trinh, cong tan
thanh toan » thanh hoa, thanh san, tinh toan
tieu xanh » tieu danh, chieu xanh, dieu hanh
trung vap » trung va, trung van, trung lap
trung cap » truong cao, trung tam
toan ban » van ban

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: "theo tieu xanh - thanh ((trung vap) OR (trung cap)) nhung cong thanh toan ban~".
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - thanh ((trung vap) OR (trung cap)) nhung cong thanh toan ban*.