It seems to me that there are two reasons: 1. Communication between your WORD and the Internet is blocked by a firewall; 2. Some websites copy articles if you don't want to copy them. They are placed on the page in the form of a table, in which the rows of the table are hidden.

Corresponding solution: 1. Set access rules in the firewall to allow WORD to communicate with the Internet; There is no good solution to the second point. Try it bit by bit, or simply print it out. The contents of some websites are not allowed for us to choose, let alone copy and paste, and we can only print them.