Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
canh trinh » canh tranh, hanh trinh, anh trinh
khang cong » hang cong, thanh cong, dang cong
hoc thieu » toc thieu, hoc hien
canh tinh » hanh tinh, manh tinh, canh tranh
van khang » van khanh, van thanh, van quang
cong dan » cong san, cong tan, huong dan
ca cau » cua cau, cac cau, can cau

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)) van khang cong dan ca cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - ((canh trinh) OR (canh tinh)) van khang cong dan ca cau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((canh trinh) or (canh tinh)) van khang cong dan ca cau*.