turn a blind eye /tɜrn ə blaɪnd aɪ/ /tɜːn ə blaɪnd aɪ/
to overlook /ˈoʊvərˌlʊk/ /ˌəʊvəˈlʊk/
to disregard /ˌdɪsrɪˈgɑrd/ /ˌdɪsrɪˈɡɑːd/