Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, cong tan
nhung cong » dung cong, thong cong, hang cong
tranh cua » manh cua
doanh cua » doanh luan
chi tach » chiu trach, chiet tach, chi thanh
toan cau » toan cao, toan ban, toan tai
toan tap » toan ban
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi tach - canh ((tranh cua) or (doanh cua)) nhung cong thanh ((toan cau) OR (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi tach - canh ((tranh cua) OR (doanh cua)) nhung cong thanh ((toan cau) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chi tach - canh ((tranh cua) or (doanh cua)) nhung cong thanh ((toan cau) OR (toan tap))".
• Adding a wildcard symbol may retrieve word variants: doi chi tach - canh ((tranh cua) or (doanh cua)) nhung cong thanh ((toan cau) OR (toan tap))*.