Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, hieu manh
tranh cua » doanh cua, manh cua
cua trong » cua truong, cua trung, qua trong
hoc hieu » hoc thieu, hoc hien, doc hieu
dan toan » van toan, dan than, manh toan
van chat » cao chat
van than » van thanh, van thang, van tuan

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu nganh - canh tranh cua trong cong ((dan toan) OR (((van chat) OR (van than)))) cau~.
• Adding a wildcard symbol may retrieve word variants: hoc hieu nganh - canh tranh cua trong cong ((dan toan) or (((van chat) or (van than)))) cau*.