Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
canh trinh » canh tranh, hanh trinh, canh tinh
hoc thieu » toc thieu, hoc hien
van thang » van thanh, van khang, van than
van hang » van khang, van hoang, ban hang
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 ((van hang) OR (van thang)) cong dan ca cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - canh trinh ((van hang) OR (van thang)) cong dan ca cau".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - canh trinh ((van hang) OR (van thang)) cong dan ca cau*.