Matched context for instability and knocking

The page lists matched contexts for instability and knocking.

Share - instability	Share - knocking	Phrase
2.07%	6.99%	{instability or knocking} [does] occur
5.57%	1.90%	cause {instability or knocking} [perform operation]
2.28%	3.99%	engine {instability or knocking}
2.19%	2.77%	prevent {instability or knocking} [perform operation]
3.70%	1.08%	{instability or knocking} frequency
4.05%	1.23%	avoid {instability or knocking} [perform operation]
3.01%	1.45%	control {instability or knocking} [perform operation]
5.14%	0.51%	eliminate {instability or knocking} [perform operation]
2.44%	0.52%	{instability or knocking} [does] cause
2.85%	0.62%	reduce {instability or knocking} [perform operation]
2.54%	0.30%	determine {instability or knocking} [perform operation]