Perhaps you should try some spelling variations:
chieu sang » chieu sach, hieu lang, nhieu tang
chieu xanh » chieu sach, chieu tinh, hieu manh
canh benh » can benh, canh binh, cac benh
chua xang » chua nang, chuc nang, chu bang
xang song » nang song, bang song, lang song
dan than » dan chan, ban than, van than

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 xanh)) - canh benh chua xang song ((dan than) or (van ban)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (chieu xanh)) - canh benh chua xang song ((dan than) OR (van ban)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) OR (chieu xanh)) - canh benh chua xang song ((dan than) or (van ban)) cao".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) OR (chieu xanh)) - canh benh chua xang song ((dan than) or (van ban)) cao*.