Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
hanh tang » hanh trang, anh tang, hanh mang
tien anh » tieng anh, tien manh, dien anh
cong dan » cong san, cong tan, huong dan
than cap » khan cap, thanh lap, thanh cac
tang va » trang va, tang van, thang va

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((tien anh) or (hieu manh)) - hanh tang va nhung cong dan ((phan tu) or (than cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((tien anh) OR (hieu manh)) - hanh tang va nhung cong dan ((phan tu) OR (than cap)).
• Adding a wildcard symbol may retrieve word variants: hoc ((tien anh) or (hieu manh)) - hanh tang va nhung cong dan ((phan tu) or (than cap))*.