Perhaps you should try some spelling variations:
manh tuong » manh tung, manh cuong, minh tuong
chieu xanh » chieu sach, chieu sang, chieu tinh
nhung cong » dung cong, thong cong, hang cong
hieu manh » hieu nganh, dieu hanh, hien hanh
tuong cua » truong cua, huong cua, thong cua
cua nhung » va nhung
dan than » dan chan, van than, dan 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 ((hieu manh) or (chieu xanh)) - manh tuong cua nhung cong ((dan than) OR (ban than)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu manh) OR (chieu xanh)) - manh tuong cua nhung cong ((dan than) OR (ban than)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hieu manh) or (chieu xanh)) - manh tuong cua nhung cong ((dan than) OR (ban than)) cao".
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu manh) or (chieu xanh)) - manh tuong cua nhung cong ((dan than) OR (ban than)) cao*.