Perhaps you should try some spelling variations:
thanh duong » thanh huong, thanh cuong, thanh vuong
chieu sang » chieu xanh, hieu lang, nhieu tang
chieu sach » chinh sach, chiet tach, chieu xanh
cong tang » cong thang, cong lang, cong vang
thanh bac » nhanh bac, thanh bai, thanh san
duong va » duong van, dung va, luong va
cong tan » cong tac, cong san, cong thanh

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 (chieu sach)) - thanh duong va nhung ((cong tang) OR (cong tan)) thanh bac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (chieu sach)) - thanh duong va nhung ((cong tang) OR (cong tan)) thanh bac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) or (chieu sach)) - thanh duong va nhung ((cong tang) OR (cong tan)) thanh bac".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (chieu sach)) - thanh duong va nhung ((cong tang) OR (cong tan)) thanh bac*.