Perhaps you should try some spelling variations:
hien nhanh » thien thanh, tien thanh, dien thanh
hanh trinh » canh tranh, hanh chinh
nhung cong » dung cong, thong cong, hang cong
hien xanh » chieu xanh, hien khanh, khien canh
hien hanh » dieu hanh
trinh cua » tinh cua, trinh luat, trinh quan
cua nhung » va nhung
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cau » 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 ((((hien xanh) or (hien hanh))) or (hien nhanh)) - hanh trinh cua nhung cong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((hien xanh) OR (hien hanh))) OR (hien nhanh)) - hanh trinh cua nhung cong dan toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((((hien xanh) or (hien hanh))) or (hien nhanh)) - hanh trinh cua nhung cong dan toan cau*.