Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, cong tan
nhung cong » dung cong, thong cong, hang cong
thanh toan » thanh hoa, thanh san, tinh toan
hieu lang » chieu sang, hieu quang, nhieu tang
doi hieu » doi chieu, doc hieu, doi hien
tranh va » tranh van, trinh va, thanh va
trang va » tran van, hang va
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: doi hieu lang - canh ((tranh va) OR (trang va)) nhung cong thanh toan tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi hieu lang - canh ((tranh va) OR (trang va)) nhung cong thanh toan tap".
• Adding a wildcard symbol may retrieve word variants: doi hieu lang - canh ((tranh va) OR (trang va)) nhung cong thanh toan tap*.