在 很多 很多 的 情况 之下 有 了 so it would translate to 'in many many circumstances exists?' what is the 情况之下有了 here?

在 很多 很多 的 情况 之下 有 了
so it would translate to ‘in many many circumstances exists?’ what is the 情况之下有了 here?

It’s happened under many different circumstances. 之下 is how you get “under.” If you remove all of the 在…下 the sentence is “这个 现象 有 了 .”