Please help me take my two kids back.

I would like to seek your generous hearts in helping me raise funds in getting my two children back. My Filipino-American ex husband took my kids to US without my knowledge last August 28, 2019. They are 7 and 5 years old. My ex husband and I have joint custody of our kids and he took the kids to US while they were in his custody and I was at work. I'm sure any parent would feel the same way I did if they learn that their kids were able to get out of their Country without them knowing. I was shattered to the core. I almost killed myself. But what stopped me from doing that is the thought of still seeing my kids someday. I want my children to know that I fought for them. As a Mom, I will go to great lengths for my children. I will do whatever it takes to take them back. So I'm trying to raise funds so I can travel to at least 3-4 Countries because that's what it takes for me to be issued a US Tourist Visa since I've never been out of my Country. I will also need money for my US Tourist Visa Fee and Fare to go to US. Please help me take my children back.