Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, nghiep nganh
hieu manh » chieu xanh, dieu hanh, hien hanh
tranh cua » doanh cua, manh cua
dung cong » dung trong
cua dung » cua dang, cua dong, qua dung
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan cao » toan ban, toan tap

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 manh) OR (hieu nganh)) - canh tranh cua dung cong san toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc ((hieu manh) OR (hieu nganh)) - canh tranh cua dung cong san toan cao".
• Adding a wildcard symbol may retrieve word variants: toc ((hieu manh) OR (hieu nganh)) - canh tranh cua dung cong san toan cao*.