Keyword Analysis & Research: what does the iceberg principle refer to

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
what does the iceberg principle refer to	0.91	1	3681	60	40
what	1.45	0.3	8284	89	4
does	0.71	0.6	5174	10	4
the	1.44	0.6	7468	85	3
iceberg	1.11	0.9	6342	20	7
principle	1.28	0.4	5567	71	9
refer	0.79	0.3	993	27	5
to	1.27	0.4	6615	66	2

Keyword	CPC	PCC	Volume	Score
what does the iceberg principle refer to	1.23	0.2	328	33