Perhaps you should try some spelling variations:
canh doanh » hanh doanh, chinh doanh, doanh doanh
chieu tinh » trieu tinh, lieu tinh, chau tinh
nhung cong » dung cong, thong cong, nhung don
hieu manh » chieu xanh, hieu nganh, dieu hanh
doanh cua » doanh luan
hang cong » dang cong, hang nong, bang cong

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((hieu manh) or (chieu tinh)) - canh doanh cua ((nhung cong) OR (hang cong)) luan van thu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu manh) OR (chieu tinh)) - canh doanh cua ((nhung cong) OR (hang cong)) luan van thu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu manh) or (chieu tinh)) - canh doanh cua ((nhung cong) OR (hang cong)) luan van thu".
• Adding a wildcard symbol may retrieve word variants: ho ((hieu manh) or (chieu tinh)) - canh doanh cua ((nhung cong) OR (hang cong)) luan van thu*.