saving search

Its possible to save searching, not to convert in collection?
Sometime is better this option than collection, because is dynamic, for example, the search a place or topic in diferent that could change.

Are you saving the search using the magnifying glass icon in the search tool? If you do it that way, it should be saving a dynamic collection (there will be a little magnifying glass icon on the collection tab itself to indicate it is dynamic). Additionally, when you click on a dynamic tab like this, the original search criteria is loaded into the search tool. Hence everything you are asking for can already be accomplished, and meanwhile if you don’t need to tweak the search criteria, you have immediate feedback and a dedicated tab.