I just found some interesting information in the query address returned by Google. If I type in the search bar "move", Google will return the following address to me:
http://www.google.com.hk/search?hl=zh-CN&newwindow=1&safe=strict&client=firefox-a&rls=org.mozilla:zh-CN:official&q=move&aq=f&aqi=&aql=&oq=
which contains some interesting fields, such as:
hl=zh-CN (language) newwindow=1 (whether to open a new window when a result entry is clicked) client=firefox (just like what it says) q=move (what I queried)
Interesting.