Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, hieu manh
nhung cong » dung cong, thong cong, hang cong
hanh tram » hanh trang, thanh tran, thanh tra
van nhung » van nhuong, va nhung, van hung
hoc hieu » hoc thieu, hoc hien, doc hieu
hanh tam » thanh tam, nhanh tam, hanh lam
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cao » toan cao, thai cao, than cap

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hieu nganh - ((hanh tram) OR (hanh tam)) van nhung cong dan than cao~".
• Adding a wildcard symbol may retrieve word variants: hoc hieu nganh - ((hanh tram) OR (hanh tam)) van nhung cong dan than cao*.