Perhaps you should try some spelling variations:
thanh vuong » thanh huong, thanh cuong, thanh chuong
thanh duong » thanh huong, thanh cuong, thanh chuong
nhung cong » dung cong, thong cong, hang cong
cong thanh » dong thanh, cong trinh, cong tan
thanh toan » thanh hoa, thanh san, tinh toan
mot chieu » doi chieu, ho chieu
cua nhung » va nhung
theo chu » theo chieu, cho chu, chao chu
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((mot chieu) or (theo chu)) xanh - ((thanh vuong) OR (thanh duong)) cua nhung cong thanh toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((mot chieu) OR (theo chu)) xanh - ((thanh vuong) OR (thanh duong)) cua nhung cong thanh toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((mot chieu) or (theo chu)) xanh - ((thanh vuong) OR (thanh duong)) cua nhung cong thanh toan tap".
• Adding a wildcard symbol may retrieve word variants: ((mot chieu) or (theo chu)) xanh - ((thanh vuong) OR (thanh duong)) cua nhung cong thanh toan tap*.