Perhaps you should try some spelling variations:
truong cong » trong cong, truong dong, truong long
luong cong » dung cong, trong cong, cong cong
chieu sang » chieu sach, chieu xanh, nhieu tang
hieu lang » hieu quang, nhieu tang, hieu van
tranh va » tranh van, trang va, trinh va
san cau » van cau, ban cau, can cau

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 lang)) - canh tranh va ((luong cong) or (truong cong)) thanh san cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (hieu lang)) - canh tranh va ((luong cong) OR (truong cong)) thanh san cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) OR (hieu lang)) - canh tranh va ((luong cong) or (truong cong)) thanh san cau".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) OR (hieu lang)) - canh tranh va ((luong cong) or (truong cong)) thanh san cau*.