Setting
go to chrome setting page chrome://settings/
example
en https://www.google.com/search?q=%s&hl=en
alc http://eow.alc.co.jp/search?q=%s
ama https://www.amazon.co.jp/s?field-keywords=%s
y http://www.youtube.com/results?search_query=%s
h http://b.hatena.ne.jp/search/text?q=%s
w http://ja.wikipedia.org/w/index.php?search=%s
you can add a custom search engine in new tab with short cut