Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
thanh cua » than cua, hanh cua, thanh cha
tranh cua » doanh cua, manh cua
canh dan » sanh dan, thanh dan, cac dan
canh van » anh van, can van, cach van
toan tap » toan ban

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 - nhanh ((thanh cua) OR (tranh cua)) phuong ((canh dan) or (canh van)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - nhanh ((thanh cua) OR (tranh cua)) phuong ((canh dan) OR (canh van)) toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - nhanh ((thanh cua) OR (tranh cua)) phuong ((canh dan) or (canh van)) toan tap".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - nhanh ((thanh cua) OR (tranh cua)) phuong ((canh dan) or (canh van)) toan tap*.