Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, hieu manh
hanh trong » hanh trang, anh trong, hinh trong
thong cong » trong cong, tong cong, thong thong
trong van » trong cac
van thong » van thuong, van phong, va thong
toc hieu » toc thieu, doc hieu, hoc thieu
cong dan » cong san, cong tan, huong dan
phan cac » nhan cach, phan dau, phan lap
khan cap » khan ap, than cap, khoan cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc hieu nganh - hanh trong van thong cong dan ((((phan cac) or (dung tai))) or (khan cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc hieu nganh - hanh trong van thong cong dan ((((phan cac) OR (dung tai))) OR (khan cap)).
• Adding a wildcard symbol may retrieve word variants: toc hieu nganh - hanh trong van thong cong dan ((((phan cac) or (dung tai))) or (khan cap))*.