How to improve performance of keywords search?

How to improve performance of keywords search?

References

Reference NO 1

http://www.mongoosemetrics.com/blog/2011/04/27/how-keyword-data-can-improve-campaign-performance/

Reference NO 2

http://www.kunocreative.com/blog/bid/86240/How-to-Improve-Content-Performance-without-Focusing-on-Keywords

Reference NO 3

http://www.webmasterworld.com/keyword/3820066.htm

Reference NO 4

http://www.optimine.com/improving-paid-search-performance/

Reference NO 5

http://www.wordstream.com/white-hat-seo

Reference NO 6

http://stackoverflow.com/questions/15186229/how-to-improve-performance-of-keywords-search

Reference NO 7

http://contentmarketinginstitute.com/2013/08/content-tools-boost-search-performance/

Reference NO 8

http://advertise.bingads.microsoft.com/en-us/help-topic/how-to/moonshot_conc_reportswhatsnext.htm/more-ways-to-track-and-improve-campaign-performance