Keyword Analysis & Research: what does not optimal mean

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
what does not optimal mean	1.92	0.8	5163	31	26
what	1.88	0.1	8767	60	4
does	1.97	0.7	8556	77	4
not	0.75	0.1	8348	39	3
optimal	0.91	0.6	4849	62	7
mean	0.09	0.7	8565	93	4

Keyword	CPC	PCC	Volume	Score
what does not optimal mean	1.01	0.5	2605	31