It appears you are searching from here instead of here. Yes, many of those results from the first link do not have full articles. Are you saying that we should have access to those articles because they are NIH funded? From the first few results (Sorted by Recently Added - no filters), I see authors based out of universities in Russia, Greece, Iran, China, India, and Ireland. I assume that none of those articles were funded by the NIH, so I would not expect any of their articles to be freely available under this program.
