Keyword Research according to SE Alogrithms?

[bava_seo]

Hi,
Lets take an example :

suppose User has typed keyword "flowers" in google.com then google will display "flowers" related websites in search results right? but here if we observe google not only produce "flowers" related websites but also Name Of The Flowers like "roses" "sun flowers" etc...

In this case how should be our keyword research and what type of keywords we have to target in the website for better SEO?

[cabowabo]

A better approach would be to create a PPC campaign for the keywords and test to see which keywords convert with your offer, and then optimize for those keywords.

Optimizing for keywords that don't convert to your offer is just a waste of time.

Note: I said "convert to your offer" not "convert in general." Jsut because the keyword converts for your competitor, doesn't mean it will convert for you. There are different offers involved.