I have had this problem with a previous Garmin, but not this one. I have never had to select from a cities list, but usually use the GPS to find addresses near where I am. Sometimes it will give me the address in several towns, but almost always allows easy selection. The search engine is so intuitive that it at times makes it difficult to use such things as zip code and telephone number for address. I have always been able to work through it, but if the instrument is not able to use what I type, it will often start suggesting things. I would contact Garmin with that question if you don't want to "fight" the device. There are, I'm sure, various ways they can give you, but it's not always easy. Wish I could be more helpful.
I'm trying to get mine to update and if it will ever work then maybe this issue will be eliminated. Out of the box I am having this same issue and I do not see any way to get rid of this. I'm definitely going to shop around more and maybe get another brand altogether next time. This one is not near as effecient as the last one I owned. It seems that things have regressed with newer models.