okay the main difference is on the exact (with quotes) you are eliminating all the pages WITHOUT that exact phrase. example :
renault car -> google returns 431,000
"renault car" -> google returns 4,010
the exact keyword term is now a lot less competitive take one step further 3 keyword term
blue renault car -> google returns 43,700
"blue renault car" -> google returns 3
so "blue renault car" is really really non-competitive
Remedies? Fixes? Suggestions?
link-building and keep reading here about seo
DaveN