Visibility formula for checking on two fields for deciding on visibility of row

I have a row that has groups in it where I need to check for Risks and Issues availability and if both are not there, make the row invisible.  If either of them or both are there, go ahead and display.  I have the following expression for one of them and it works for the risk group but for the life of me I cannot figure out how to check for both risk and issue fields; have tried many different possibilities but it keeps telling me the syntax is invalid.  Any ideas would certainly be helpful.