I want to search a word like fooonetwo in one pdf. So the point is I do not know the real ward is foo_one_two or foo.one.two or foo-one-two or foo-one_two! or ... .
Or better to say I want to search for words which at the same time include foo and one and two. So I remember in the database we have kind of this feature : For example a query for looking for words which start by foo and also include one and two. So is there any PDF viewer to do that? What PDF viewer and how to do that.