Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, nhung don
chieu sang » chieu sach, chieu xanh, hieu lang
tranh cua » doanh cua, manh cua
hang cong » dang cong, hang nong, bang cong
hieu van » hieu va, thien van, lieu va
tan toan » tan tran, tap toan, van toan
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu sang) or (hieu van)) - canh tranh cua ((nhung cong) OR (hang cong)) tan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (hieu van)) - canh tranh cua ((nhung cong) OR (hang cong)) tan toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) or (hieu van)) - canh tranh cua ((nhung cong) OR (hang cong)) tan toan cao".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (hieu van)) - canh tranh cua ((nhung cong) OR (hang cong)) tan toan cao*.