Perhaps you should try some spelling variations:
tranh cua » doanh cua, manh cua
dung cong » dung trong
cua tinh » va tinh, ha tinh, hoa tinh
cua sinh » hoa sinh, va sinh
cua dung » cua dang, cua dong, qua dung
cong san » cong tac
san phan » san pham, van phan, sat phan
phan cac » nhan cach, phan dau, phan lap

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

• Performing a fuzzy search may retrieve terms with similar spellings: a ((cua tinh) or (cua sinh)) - canh tranh cua dung cong san phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: a ((cua tinh) OR (cua sinh)) - canh tranh cua dung cong san phan cac.
• Adding a wildcard symbol may retrieve word variants: a ((cua tinh) or (cua sinh)) - canh tranh cua dung cong san phan cac*.