If you want to support Oxford University Press but love the digital convenience that the "VK search" promises, consider these legal alternatives:
Oxford Read and Imagine is an award-winning series of graded readers by Oxford University Press. These books use the same levels and characters as the series, but they focus on fictional stories that integrate science, history, and the natural world.
If you tell me which specific Oxford Read and Imagine book you need (title + level), I can help you find its ISBN and legal sources.
Many teachers and parents share PDFs, audio CDs, activity books, and teacher’s notes in VK communities. Just search: