You are reasherching the following question: What causes tornadoes? Choose the best query to use when searching for the answer.

A Cause NOT tornadoes
B Tornadoes OR causes*****
C "Tornadoes causes"
D Causes - tornadoes

2 answers

I'll show you what I got Googling each of those terms.

https://www.google.com/search?source=hp&ei=ylKJXJLCKs-MtgXxrqmYCw&q=+Cause+NOT+tornadoes+&btnK=Google+Search&oq=+Cause+NOT+tornadoes+&gs_l=psy-ab.3..33i160.3438.3438..4564...0.0..0.151.151.0j1......0....2j1..gws-wiz.....0.UM31imqYmBk

https://www.google.com/search?source=hp&ei=BlOJXLSKD8OctAXcrKyABA&q=Tornadoes+OR+causes&btnK=Google+Search&oq=Tornadoes+OR+causes&gs_l=psy-ab.3..0i22i30l5.3543.3543..4261...0.0..0.106.106.0j1......0....2j1..gws-wiz.....0.bj_njMSBDyU

https://www.google.com/search?source=hp&ei=c1OJXJGMCJGe_QaUmIWACg&q=+%22Tornadoes+causes%22+&btnK=Google+Search&oq=+%22Tornadoes+causes%22+&gs_l=psy-ab.3..0j0i22i30l9.4196.4196..6205...0.0..0.94.94.1......0....2j1..gws-wiz.....0.nLakpNb3bCs

https://www.google.com/search?source=hp&ei=ulOJXMqKFtLN_Aa3hKGADg&q=+Causes+-+tornadoes&btnK=Google+Search&oq=+Causes+-+tornadoes&gs_l=psy-ab.3..0i22i30l10.3861.3861..5437...0.0..0.104.104.0j1......0....2j1..gws-wiz.....0.aW3PyuRAfg0

The last one was probably most direct -- but they all had sites about the causes of tornadoes.

Your information is way out of date. It doesn't make much difference which search term protocol you use.
https://www.hackcollege.com/blog/2011/11/23/infographic-get-more-out-of-google.html

Scroll down below "How to Google" and read, read, read. However, keep in mind this was first published online in November 2011. So, as Ms. Sue said, your information [and I'll add, this webpage's information, too] is out of date. Google's programmers have made the search engine "smarter" as time has gone on.