Perhaps you should try some spelling variations:
thanh trung » thanh tung
thanh thanh » nhanh thanh, thanh toan, thanh phan
chieu sang » chieu sach, chieu xanh, nhieu tang
trung chua » trung cua, trong chuan, trung ha
thanh thao » thanh thang, thanh pho, thanh toan
hieu lang » hieu quang, nhieu tang, hieu van
chua dong » cua dong, ha dong, huy dong
dong cong » duong cong, dung cong, dang cong
cong van » cong vang, cong san, song van

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