hi Amanda,
the record selection filter scenarios that you're trying to accomplish are these, correct? i've also attached a .txt file in case the picture doesn't scale out properly when you click on it.
after you've done what Abhilash & Prathamesh recommended regarding checking the Database menu > Show SQL Query against the database and evaluating the WHERE clause you may wish to see if NULL values are the cause of the records not coming back.
i.e. when scenario 1 runs and there is a NULL value in any of those 4 fields, then that will negate the rest of the filter (scenario 2 & 3) from running.
to check to see if NULLs are indeed the issue, go to the File menu > Report Options > and ensure that Convert Database NULL Values to Default is checked. note though that this will convert null numbers to 0 and null strings to '' and null dates to something like 1900-01-01. in some scenarios this is not wanted.
if the nulls were the issue and the null conversion won't have negative effects on your report then hopefully this will work for you.
-jamie