Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, hieu manh
tranh cua » doanh cua, manh cua
dung cong » dung trong
doc hieu » toc thieu, hoc thieu, hoc hien
cua dung » cua dang, cua dong, qua dung
cong san » cong tac
hanh cat » hanh luat, nhanh cay, hanh va
hanh cac » hang cac, nhanh cay, hanh va
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: doc hieu nganh - canh tranh cua dung cong san ((((hanh cat) OR (hanh cac))) or (khan cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu nganh - canh tranh cua dung cong san ((((hanh cat) OR (hanh cac))) OR (khan cap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu nganh - canh tranh cua dung cong san ((((hanh cat) OR (hanh cac))) or (khan cap))".
• Adding a wildcard symbol may retrieve word variants: doc hieu nganh - canh tranh cua dung cong san ((((hanh cat) OR (hanh cac))) or (khan cap))*.