Complex sentence: While searching for parallel articles from other encyclopedias I followed the same criteria but also looked for corresponding articles that did not have exactly the same information as the Wikipedia article or the expanded on a different part of the topic.
Split into simpler sentences: While searching for parallel articles from other encyclopedias I followed basically the same criteria. As well as looking for corresponding articles that did not have exactly the same information as the Wikipedia article or that expanded on a different part of the topic.