Perhaps you should try some spelling variations:
hien nhanh » thien thanh, tien thanh, dien thanh
hanh trinh » canh tranh, hanh chinh
trinh quan » tinh quang, trinh luat, trinh han
hien hanh » dieu hanh
quan dung » quang dung, quan duong, qua dung
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
toan cao » toan ban, toan tap

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: hoc ((hien hanh) OR (hien nhanh)) - hanh trinh quan dung ((cong dan) OR (cong tan)) toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien hanh) or (hien nhanh)) - hanh trinh quan dung ((cong dan) OR (cong tan)) toan cao~".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien hanh) or (hien nhanh)) - hanh trinh quan dung ((cong dan) OR (cong tan)) toan cao*.