Saving to nfs share

I have nfs set up with the server on a raspberry pi which has 2TB of storage attached. I am running Linux Mint 19.3 and Libreoffice. Can’t say which version as it doesn’t show the File/Edit/Table etc. menu for some reason.
It isn’t possible to save any files to an nfs share although other software allows me to save pdf, text video and other file without problems. How can I solve this please?

I had a look at the fstab file after looking at other nfs installation tutorials which suggested a variety of syntax and after trying some I hit on one which Libreoffice is happy with.
So it’s working now

@barrowman: It would be good if you stated the solution here as answer to maybe help others with a similar problem.

I had a look at the fstab file after looking at other nfs installation tutorials which suggested a variety of syntax and after trying some I hit on one which Libreoffice is happy with. So it’s working now.
Here is the syntax on my laptop which works:

server_IP_address:{/home/pi/shared_folder}  /home/user/where_share_will_be_mounted nfs auto, noatime, nolock, bg, nfsvers=3,intr,tcp,actimeo=1800 0 0

Thanks!

[I edited it to replace blanks with _ underscore to clarify portions and created a literal block by indenting by 4 spaces]