About a week ago I read a post in some topic on this forum (can't remember which one it was) where someone was claiming that if you build backlinks for some url (site) for multiple keywords, ranking will somehow split amongst them. For example you first build backlinks for keyword "apple" and rank well. Then you start building backlinks for keywords "peach", "pear" and "orange" to the same page. By doing that you'll start ranking worse for "apple" even though you still have the same amount of "apple" backlinks. Is that true?