Perhaps you should try some spelling variations:
thanh thong » thanh thuong, thanh hong, thanh thang
chieu sang » chieu sach, chieu xanh, nhieu tang
phap thong » phap phong, phap chong, pho thong
hieu lang » hieu quang, nhieu tang, hieu van
cap thong » cap tong, chap thuong, chap phong
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cap » khan cap, thanh lap, thanh cac

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 thong ((cap thong) or (phap thong)) cong dan than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (hieu lang)) - thanh thong ((cap thong) OR (phap thong)) cong dan than cap*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) OR (hieu lang)) - thanh thong ((cap thong) or (phap thong)) cong dan than cap*".