Matched context for difficulty and clogging

The page lists matched contexts for difficulty and clogging.

Share - difficulty	Share - clogging	Phrase
1.74%	7.59%	cause {difficulty or clogging} [perform operation]
2.29%	5.34%	avoid {difficulty or clogging} [perform operation]
0.75%	8.49%	prone to {difficulty or clogging}
0.60%	4.79%	{difficulty or clogging} [does] occur
0.21%	11.56%	prevent {difficulty or clogging} [perform operation]
1.05%	1.15%	not {difficulty or clogging}
0.52%	2.19%	reduce {difficulty or clogging} [perform operation]
0.15%	1.79%	system {difficulty or clogging}
0.16%	2.11%	valve {difficulty or clogging}