I have just done a couple of quick searches and the results listed don't match the count reported. My account preferences show Full Access.
First search 'hello kitty backpack' (no quotes) resulted in Results 1 - 10 of 499 files found for [hello kitty backpack] but only 5 stories listed. The second page of results shows 11-20 as expected. Page 3 reported 21-30 but only showed 21-26, page 4 reported 31-40 and page 5 41-50 but no stories on either 4 or 5
Second search "hello kitty backpack" including the quotes. Results 1 - 7 of 7 files found for ["hello Kitty Backpack"] but only three stories listed.