What is the fine-grained topic of the following text: New meaning which appeared in the period since the end of 20th century to beggining of 21st century is defined – „intentionally violating the law in order to earn money illegally“ (левый товар, левые заработки, левые услуги). Only return the topic.
Evolution of the meaning of earning money illegally from end of 20th to beginning of 21st century.