Help me to search on calendar for more than one year

I desparately need to be able to search on calendar for more than one year., which was taken away on the new operating system. I have kept personal memories of my husband on there in the notes sections on days when we did things. ( I have also kept all kinds of personal notes, like doctor records or conversations, in the notes of events/dates.) it is a huge loss for me not to be able to search my calendar for more than one year. Is there any way I can do this?