Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, hieu manh
hanh trang » thanh trung, hanh trinh, minh trang
nhung cong » dung cong, thong cong, nhung don
hang cong » dang cong, hang nong, bang cong
danh toan » manh toan, anh toan, dan toan
hoc hieu » hoc thieu, hoc hien, doc hieu
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hieu nganh - ((hanh trang) or (canh tranh)) cua ((nhung cong) OR (hang cong)) danh toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu nganh - ((hanh trang) OR (canh tranh)) cua ((nhung cong) OR (hang cong)) danh toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hieu nganh - ((hanh trang) or (canh tranh)) cua ((nhung cong) OR (hang cong)) danh toan tap".
• Adding a wildcard symbol may retrieve word variants: hoc hieu nganh - ((hanh trang) or (canh tranh)) cua ((nhung cong) OR (hang cong)) danh toan tap*.