Hmm, how can I find more segments with ITA? I'm trying to price a r/t from LAX to any of those Delta hubs with as many segments as I can, so in the advanced routing codes I'm adding:

ua,co san,sba,psp,slc,sfo,den,ord ua,co san,sba,psp,slc,sfo,den,ord ua,co+

Which I think means: 1st leg on UA or CO, then a stop in one of those cities I list, then another UA,CO flight to another of those cities, then any number of additional UA,CO flights to get me to my destination (ATL, MEM, MSP, CVG, DTW).... but it's giving me lax-sfo-ord-msp-sfo-lax for $204... why not more legs?