Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
canh trinh » canh tranh, hanh trinh, anh trinh
thang nong » thang long, hang nong, tang nong
hoc thieu » toc thieu, hoc hien
canh tinh » hanh tinh, manh tinh, canh tranh
hoa thang » hoa thanh, hoa than, hoa thong
thanh cac » hanh cac, thanh bac, thanh ca
nong dan » cong dan, nong san, nguong dan
than cap » khan cap, thanh lap, than cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu xanh - ((canh trinh) or (canh tinh)) hoa thang nong dan ((than cap) OR (thanh cac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - ((canh trinh) OR (canh tinh)) hoa thang nong dan ((than cap) OR (thanh cac)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - ((canh trinh) or (canh tinh)) hoa thang nong dan ((than cap) OR (thanh cac))".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((canh trinh) or (canh tinh)) hoa thang nong dan ((than cap) OR (thanh cac))*.