Overture Keywords…?

how come when you get the results of a keyword frequency search in Overture, the phrases come out in what appears to be a wrong order. e.g. “seach for keyword” may come out as “keyword for search”….i don’t understand this as there are some terms which could be swapped round “malaga hotel” and “hotel malaga” for example so how do you know which is the one the frequency corresponds to…and why do the mix up the order of the words anyway’??