Perhaps you should try some spelling variations:
thanh thuong » thanh huong, thanh chuong, thanh phuong
chieu sang » chieu sach, chieu xanh, nhieu tang
hieu lang » hieu quang, nhieu tang, hieu van
thuong tu » thong tu, tuong tu, huong tu
hang cong » dang cong, hang nong, bang cong
cong tac » cong ty
tu hang » thu hang, tu hanh, tu hung
tac dan » tac danh, cac dan, tac da

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((chieu sang) OR (hieu lang)) - thanh thuong tu hang cong tac dan ca~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((chieu sang) OR (hieu lang)) - thanh thuong tu hang cong tac dan ca".
• Adding a wildcard symbol may retrieve word variants: doc ((chieu sang) OR (hieu lang)) - thanh thuong tu hang cong tac dan ca*.