Perhaps you should try some spelling variations:
thanh trung » thanh tung
hanh trang » hanh trinh, minh trang, tinh trang
dung cong » dung trong
chi xanh » chi anh, chi danh, chi hanh
cua dung » cua dang, cua dong, qua dung
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan ban » van ban
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi xanh - ((((hanh trang) OR (canh tranh))) or (thanh trung)) cua dung cong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi xanh - ((((hanh trang) OR (canh tranh))) OR (thanh trung)) cua dung cong dan toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chi xanh - ((((hanh trang) OR (canh tranh))) or (thanh trung)) cua dung cong dan toan ban".
• Adding a wildcard symbol may retrieve word variants: doi chi xanh - ((((hanh trang) OR (canh tranh))) or (thanh trung)) cua dung cong dan toan ban*.