Perhaps you should try some spelling variations:
trien quang » tran quang, tuyen quang, dien quang
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
thong cong » trong cong, tong cong, thong thong
nhung don » nhung van, nhung bo
trung va » truong va, trang va, trung ha
van van » tan van, san van, van vat

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc ((chieu sang) or (trien quang)) - thanh trung va ((nhung don) or (thong cong)) van van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((chieu sang) OR (trien quang)) - thanh trung va ((nhung don) OR (thong cong)) van van ban.
• Adding a wildcard symbol may retrieve word variants: toc ((chieu sang) or (trien quang)) - thanh trung va ((nhung don) or (thong cong)) van van ban*.