Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
thue xanh » thue thanh, thuc hanh, thuy anh
hanh tang » anh tang, hanh mang, hanh tung
cho thue » choi thuc, cuc thue, cho he
cua dung » cua dang, cua dong, qua dung
cong dan » cong san, cong tan, huong dan
dan van » dang van, doan van, dao van

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

• If you are trying to use Boolean operators, they must be ALL CAPS: cho thue xanh - ((hanh tang) OR (hanh trang)) ((cua dung) OR (qua song)) cong dan van ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "cho thue xanh - ((hanh tang) OR (hanh trang)) ((cua dung) or (qua song)) cong dan van ban~".
• Adding a wildcard symbol may retrieve word variants: cho thue xanh - ((hanh tang) OR (hanh trang)) ((cua dung) or (qua song)) cong dan van ban*.