can a child file for a visit visa...?

[aryM]

I agree with Mrs M, getting married in the Philippines is the best option. The other option is to apply for a fiancee visa, but because the fiancee visa application will include 2 children, it will be a bit more complicated and uncertain than a spouse visa.

You haven't mentioned your marital status or the childrens father, whether he is alive and whether he has contact with the children or is named on their birth certificates. These sort of details will have a lot of bearing on how easy, or difficult it will be to get either a fiancee or a spouse visa.
Iain.

Hi Iain,. Thanks for the reply. I am already widowed for about 2 years now. My children are legitimate too.