Perhaps you should try some spelling variations:
thieu tinh » chieu tinh, thien tinh, lieu tinh
canh doanh » hanh doanh, chinh doanh, doanh doanh
nhung cong » dung cong, hang cong, nhung don
thong cong » trong cong, tong cong, thong thong
doanh cua » doanh luan
toan cau » 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: hoc ((thieu tinh) or (trieu tinh)) - canh doanh cua ((nhung cong) OR (thong cong)) tinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu tinh) OR (trieu tinh)) - canh doanh cua ((nhung cong) OR (thong cong)) tinh toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu tinh) or (trieu tinh)) - canh doanh cua ((nhung cong) OR (thong cong)) tinh toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu tinh) or (trieu tinh)) - canh doanh cua ((nhung cong) OR (thong cong)) tinh toan cau*.