Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, canh tinh
thu canh » thuc hanh, thu cong, thu ban
cac danh » cac doanh, cac dan, cac dang
danh hoa » thanh hoa, khanh hoa, nganh hoa
han khi » van khi, than khai, than khoi
ban khi » bang khi, ban thi, ban chi
hoa khi » hoa phi, hoa hi, hoa thi

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( thu canh trinh ((han khi) OR (ban khi)) đong luc ) OR ( tu cac danh hoa khi đong luc ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( thu canh trinh ((han khi) OR (ban khi)) đong luc ) or ( tu cac danh hoa khi đong luc ))~".
• Adding a wildcard symbol may retrieve word variants: (( thu canh trinh ((han khi) OR (ban khi)) đong luc ) or ( tu cac danh hoa khi đong luc ))*.