Are 'more than once' and 'many times' interchangeable? Do they have the same or similar sense? In addition, I don't know where to put them in a sentense. Where do you usually put them in the sentence?
I want to use something similar to 'more then once' in a sense of "many times" in my speech. But I would like to say an idiom or a phraseological unit with the meaning of 'many times'.
This law firm advised oil and gas companies more than once [many times] on the anticorruption and fraud issues.