Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
hanh trinh » canh tranh, hanh chinh
nhung cong » dung cong, thong cong, hang cong
trinh cua » tinh cua, trinh luat, trinh quan
cua nhung » va nhung
cong dan » cong san, cong tan, huong dan
pvan tu » phan tu
van tu » van thu, van du, ban tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hien nhanh) or (dieu hanh)) - hanh trinh cua nhung cong dan ((van tu) or (pvan tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien nhanh) OR (dieu hanh)) - hanh trinh cua nhung cong dan ((van tu) OR (pvan tu)).
• Adding a wildcard symbol may retrieve word variants: hoc ((hien nhanh) or (dieu hanh)) - hanh trinh cua nhung cong dan ((van tu) or (pvan tu))*.