All of the farm names that you've mentioned can be found in the Eidfjord area of Hordaland. In earlier years that district was also known as Øyfjord.
Many many sources and old records for that area have been preserved on LDS microfilm. You should be able to track for relatives who stayed in Norway by carefully following those records in the reverse time direction that we interested in genealogy usually do and then finding some way to post your interest in a media that they might notice - perhaps in some newspaper that is distributed in that region.
I recognize several of the earlier couples that you've mentioned because I also have family history connecting to those farms. For example - the 'Joronn Olsdatter' you listed is my 6th great-grandaunt.