Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hieu manh » chieu xanh, hieu nganh, dieu hanh
trinh cua » tinh cua, trinh luat, trinh quan
cua nhung » va nhung
hoc hieu » hoc thieu, hoc hien, doc hieu
cong dan » cong san, cong tan, cong tac
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hieu manh - hanh trinh cua nhung ((((cong dan) or (cong dong))) or (huong dan)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - hanh trinh cua nhung ((((cong dan) OR (cong dong))) OR (huong dan)) toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - hanh trinh cua nhung ((((cong dan) or (cong dong))) or (huong dan)) toan cao*.