Perhaps you should try some spelling variations:
nhung huong » nhung phuong, nhung tuong, nhung cong
hanh tranh » canh tranh, hanh trinh, hanh trang
hien xanh » hien hanh, hien nhanh, chieu xanh
tranh va » tranh van, trang va, trinh va
ban toan » bai toan, van toan, bao toan
ban than » ban thanh, van thanh, ban hang

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien xanh - hanh tranh va nhung huong ((ban toan) OR (ban than)) cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien xanh - hanh tranh va nhung huong ((ban toan) OR (ban than)) cao".
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - hanh tranh va nhung huong ((ban toan) OR (ban than)) cao*.