Perhaps you should try some spelling variations:
hieu manh » chieu xanh, hieu nganh, dieu hanh
hoc hieu » hoc thieu, hoc hien, doc hieu
hanh han » hanh nhan, hanh phan, anh han
hanh san » thanh san, khach san, thanh son
cua bang » chua bang, cua ban, cua dang
cong dan » cong san, cong tan, cong dong
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 hieu manh - ((hanh han) or (hanh san)) cua bang ((cong dan) or (huong dan)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - ((hanh han) OR (hanh san)) cua bang ((cong dan) OR (huong dan)) toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - ((hanh han) or (hanh san)) cua bang ((cong dan) or (huong dan)) toan cau*.