Looking on the internet deeply has found these results:

Thanks for all that you do is the most popular phrase on the web.

Thanks for all what you do 1887,000 results on the web	Thanks for all that you do 119,600,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:

Thanks for all what you do

1887,000 results on the web

Thanks for all that you do

119,600,000 results on the web

More popular!