Perhaps you should try some spelling variations:
tang cuong » nang luong
chieu tinh » trieu tinh, lieu tinh, chau tinh
nhung cong » dung cong, thong cong, hang cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
cuong cua » huong cua, cong cua, luong 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 tinh)) - tang cuong 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 tinh)) - tang cuong cua nhung cong ((dan than) OR (ban than)) cao.
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu manh) or (chieu tinh)) - tang cuong cua nhung cong ((dan than) or (ban than)) cao*.