what is right keyword it is a main question of SEO ?
right keyword must be included in tittle , Content and meta tags which is put in the script.
Check the right keyword in google adword keyword tool and adopted most search able keyword. If we are going to work on affiliate marketing then check your keyword match with campaigns check their worth in affiliate search bar then put the right keyword in your site.

Right keyword for PPC ( pay per click)
in PPC these companies search by hot topics or another media networks or right keyword for that are News education , insurance , forex trading ,Health and Technology

How can multiply keywords
mostly people used keyword multiplier through software but it shows the error 409 in search engine manual keyword multiplying is the best tool for Onpage SEO e.g my post tittle is right keyword i multiply it like that
right keyword , keyword right , choosing the keyword , find the right keyword