Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, hieu manh
hanh trang » thanh trung, canh tranh, hanh trinh
thong cong » trong cong, tong cong, thong thong
trang cua » tranh cua, tang cua, trung cua
cua thong » cua thuong, cua khong, cua tong
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.

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((hieu nganh) or (chinh sach)) - hanh trang cua thong cong dan than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu nganh) OR (chinh sach)) - hanh trang cua thong cong dan than cao.
• Adding a wildcard symbol may retrieve word variants: ho ((hieu nganh) or (chinh sach)) - hanh trang cua thong cong dan than cao*.