By bits and pieces and Here and there

Here and there and by bits and pieces are semantically related in irregular topic. In some cases you can use "Here and there" instead an adjective phrase "By bits and pieces", when it comes to topics like intermittent.

Here and there adverb - In one place and another.

By bits and pieces and here and there are semantically related in irregular topic. Sometimes you can use "By bits and pieces" instead an adjective phrase "Here and there", if it concerns topics such as intermittent.