If you're seeking synonyms for the term "more collection," there are various words or phrases that can be used to convey a similar meaning. For instance, you can use "additional compilation," "extra assortment," or "supplementary set." Alternatively, you can describe it as "an extended selection," "a more extensive variety," or "a larger inventory." You can also use more specific terms like "increased gallery," "expanded library," or "augmented archive." Whatever synonym you choose, it will ultimately depend on the context and purpose you intend to convey with the phrase "more collection".