How can I download csv. files from Google Trend Website for a list of keywords?

How can I download csv. files from Google Trend Website for a list of keywords? I found the website of Marcelo Perlin (https://msperlin.github.io/content/matlabcode/, however it is not working. Probably because of the in-function, which does not read the "content" line properly - see code. Any suggestions or reference to other forums?

   link='http://www.google.com.br/trends/explore?q=';
link=[link myStr '&geo='];
link=[link myGeo];
link=[link '&content=1&export=1&graph=all_csv'];