I'm generally not a huge fan of rail replacement buses, and try to avoid them where possible. Recently, I've been looking at some French train travel, and bus journeys seem to keep creeping into the results.
Try as I might, I can't seem to get the usual suspects (Loco2, RailEurope / Voyages-SNCF etc) to allow me to exclude buses from my search. They all seem to take the view "if it has a SNCF number it's shown", train or bus. All the results seem to look the same until you get into the journey details, where Loco2 do at least flag up clearly that there's a bus involved, but none of them seem to let me exclude those to focus on just the pure-train results.
Is it possible to do a search online for French rail journeys, and have the options restricted to just actual trains?
Edit Just to clarify, these aren't on routes where no trains run, these are on smaller routes with multiple services per day, some of which are trains, some of which are SNCF operated buses. I wish to exclude this SNCF bus options from the results, such as in the screenshot below only having results 2 and 4 but not 1 and 3: