Perhaps you should try some spelling variations:
thanh thang » nhanh thang, thanh thanh, thanh hang
chieu sang » chieu sach, chieu xanh, nhieu tang
thong cong » trong cong, tong cong, thong thong
hieu lang » hieu quang, nhieu tang, hieu van
thang va » hang va, trang va, thong va
va thong » va thuong, va phuong, he thong
cong tap » cuong tap, cong tac, cong tan
tap dan » tap doan, tap danh, tap van

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 thang va thong cong tap dan ca~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((chieu sang) OR (hieu lang)) - thanh thang va thong cong tap dan ca*".