SEO tips = better search engine ranking

When is the same keyword not the same?

I did a Google search for "English as a second language" and saw that ESL go.com was #18. Not bad. I should be able to crack the top ten. Then I remembered that "as" and "a" were not included in the search. That's why I changed my title from "ESL go - free English as a second language..." to "ESL go - free English second language..."

I did a search for English second language. ESL go.com is ranked #8. How odd. If "as" and "a" are not counted why are the search results for English second language and English as a second language so very different?