Can anyone tell me if it matters if i combine several keywords to make a longer keyword for link building? Since it would be less time consuming and cost less money. For instance if i have 3 keywords for example: great books, books online, history books What if i used the keyword "great history books online" when buying back links. Would this still get me good rankings for the keyword "great books" and the keyword "books online" ? Please let me know..as i have limited funds to buy backlinks so i was wondering if i can do it this way.