Looking on the internet deeply has found these results:

thanks for their support is the most popular phrase on the web.

thanks for their supports 111,900 results on the web	thanks for their support 12,830,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
I thank everybody for their support. I thank everyone for their support and suggestions. I would like to thank Members for their support and collaboration on this important regulation. I want to be there to thank them for their support. So we thank everybody for their support at this terrible time. We respect our partners' every last euro and we thank them for their support. I know she'd want to thank everyone for their support. I would like to purchase all our friends thank for all their support.	I want to be there to thank them for their support. I thank everyone for their support and suggestions. We respect our partners' every last euro and we thank them for their support. I would like to thank Members for their support and collaboration on this important regulation. I know she'd want to thank everyone for their support. I would like to purchase all our friends thank for all their support. I thank everybody for their support. So we thank everybody for their support at this terrible time.

thanks for their supports

111,900 results on the web

thanks for their support

12,830,000 results on the web

More popular!

I thank everybody for their support.
I thank everyone for their support and suggestions.
I would like to thank Members for their support and collaboration on this important regulation.
I want to be there to thank them for their support.
So we thank everybody for their support at this terrible time.
We respect our partners' every last euro and we thank them for their support.
I know she'd want to thank everyone for their support.
I would like to purchase all our friends thank for all their support.

I want to be there to thank them for their support.
I thank everyone for their support and suggestions.
We respect our partners' every last euro and we thank them for their support.
I would like to thank Members for their support and collaboration on this important regulation.
I know she'd want to thank everyone for their support.
I would like to purchase all our friends thank for all their support.
I thank everybody for their support.
So we thank everybody for their support at this terrible time.