Perhaps you should try some spelling variations:
tranh cua » doanh cua, manh cua
dong cong » duong cong, dung cong, dang cong
cong danh » cuong danh, cong dan, cong thanh
cua sinh » va sinh
hoa sinh » cho sinh
cua dong » chua dong, cua cong, cua dang
toan cau » toan ban, toan tap, toan tai
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: dong ((cua sinh) OR (hoa sinh)) - canh tranh cua dong cong danh ((toan cau) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: dong ((cua sinh) OR (hoa sinh)) - canh tranh cua dong cong danh ((toan cau) OR (toan cao)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "dong ((cua sinh) OR (hoa sinh)) - canh tranh cua dong cong danh ((toan cau) or (toan cao))".
• Adding a wildcard symbol may retrieve word variants: dong ((cua sinh) OR (hoa sinh)) - canh tranh cua dong cong danh ((toan cau) or (toan cao))*.