Hi @Anonymous ,
According to your description, I've made a test for your reference:
1\ This is my test list ‘LIST94’.

2\ Add a texinput control ‘TextInput1’
3\ Add a gallery control and set its Items property to:
Filter(ForAll(LIST94 As A,If(CountRows(Filter(ForAll(Split(TextInput1.Text," ") As B,If(B.Result in A.Test,{Value:"A"})),!IsBlank(Value)))=CountRows(Split(TextInput1.Text," ")),A)),!IsBlank(Test))
4\ The result is as follows:




Best Regards,
Wearsky
If my post helps, then please consider Accept it as the solution to help others. Thanks.