Keyword Analysis & Research: i can't open pdf files on my computer

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
i can't open pdf files on my computer	0.73	0.1	6746	67	37
i	1.21	0.4	5623	24	1
can't	0.74	0.5	4294	31	5
open	0.72	0.9	8112	99	4
pdf	0.44	0.4	3374	85	3
files	1.15	0.1	1918	98	5
on	1.03	1	1613	45	2
my	1.35	0.2	8974	63	2
computer	0.86	0.5	9886	72	8

Keyword	CPC	PCC	Volume	Score
i can't open pdf files on my computer	1.99	0.1	5869	93
why can't i open pdf files on my computer	1.98	0.6	8628	92
why can't i open my pdf files on my computer	0.98	0.3	4252	17
why can't i open any pdf files on my computer	1.7	0.8	4925	24