Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, anh trinh
hoc thieu » hoc hien
canh tinh » hanh tinh, manh tinh, canh tranh
hang cong » dang cong, hang nong, bang cong
van hang » van khang, van hoang, van thang
cong dan » cong san, cong tan, huong dan
dan phan » doan phan, dan chan, van phan
phan cau » phan dau, phan cac, phan tu

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) or (toc thieu)) xanh - ((canh trinh) OR (canh tinh)) van hang cong dan phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (toc thieu)) xanh - ((canh trinh) OR (canh tinh)) van hang cong dan phan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thieu) or (toc thieu)) xanh - ((canh trinh) OR (canh tinh)) van hang cong dan phan cau".
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (toc thieu)) xanh - ((canh trinh) OR (canh tinh)) van hang cong dan phan cau*.