Hello Bachar Zeidan,
The TagList control works only with items from type ITag. Unfortunately, even if you store a new item as a tag, the tags list control will not show the tag if there is no content associated with it. If it shows a tag though, it always has a link to the actual content item, rather than supplying a link with query string to the search.
The only option here unfortunately is to develop a new control, which shows the search words by number of usage.
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