Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
theo dieu » theo tieu, theo chieu, thuoc dieu
hanh mang » nhanh mang, hanh trang, nhanh lang
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
toan ban » van ban
va hang » van hang, va nang, va lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo dieu hanh - ((hanh mang) or (hanh trinh)) va hang ((cong dan) OR (cong tan)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo dieu hanh - ((hanh mang) OR (hanh trinh)) va hang ((cong dan) OR (cong tan)) toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo dieu hanh - ((hanh mang) or (hanh trinh)) va hang ((cong dan) OR (cong tan)) toan ban".
• Adding a wildcard symbol may retrieve word variants: theo dieu hanh - ((hanh mang) or (hanh trinh)) va hang ((cong dan) OR (cong tan)) toan ban*.