Perhaps you should try some spelling variations:
nhieu tang » chieu sang, nhiet nang
cong thanh » dong thanh, cong trinh, cong tan
thanh toan » thanh hoa, thanh san, tinh toan
hieu lang » chieu sang, hieu quang, hieu van
lang cong » dang cong, bang cong, hang cong
toan cao » toan ban, toan tap
va lang » va nang, hoa lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((hieu lang) OR (nhieu tang)) - ((thanh tung) or (thanh cong)) va lang cong thanh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu lang) OR (nhieu tang)) - ((thanh tung) OR (thanh cong)) va lang cong thanh toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu lang) OR (nhieu tang)) - ((thanh tung) or (thanh cong)) va lang cong thanh toan cao".
• Adding a wildcard symbol may retrieve word variants: ho ((hieu lang) OR (nhieu tang)) - ((thanh tung) or (thanh cong)) va lang cong thanh toan cao*.