You have to realize that Google analytics are great in helping you with effective search engine optimization
. You can also study the client's analytics and get to know whether the searchers are using branded queries more than the generic terms. If you discover that searchers are using more of branded queries, then you can focus the client's search efforts on branded search. You have to get rid of this assumption that analytics will tell you what people are searching for because they only tell you about the queries which can get higher click through. You can improve your search engine optimization only by hiring some SEO professionals from web analytics consultancy. If you want to know about your searchers' behavior in detail, then you should always use a variety of keyword research tools in your search engine marketing plan.