Perhaps you should try some spelling variations:
hanh sinh » hanh tinh, hanh dinh, hinh sinh
vat nhung » va nhung, vap nhung, vai nhung
hoi hieu » hoi phieu, hoi tieu, moi hieu
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
phan cau » phan dau, phan cac, phan tu
co hieu » cao hieu, doc hieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((co hieu) or (hoi hieu)) lang - hanh sinh vat nhung ((cong dan) or (cong tan)) phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((co hieu) OR (hoi hieu)) lang - hanh sinh vat nhung ((cong dan) OR (cong tan)) phan cau.
• Adding a wildcard symbol may retrieve word variants: ((co hieu) or (hoi hieu)) lang - hanh sinh vat nhung ((cong dan) or (cong tan)) phan cau*.