Add spaces: ThematchingprogramtohelpfundDebianparticipationinOPWwillendonNovember14.

Answer: The matching program to help fund Debian participation in OPW will end on November 14.

Add spaces: MSHybridMomentarycorruptionbeforestreaminggamesgointofull-screenmode.

Answer: MS Hybrid Momentary corruption before streaming games go into full-screen mode.

Add spaces: A"convocation"isanassemblyofthepeoplewheretheirpresenceiscommanded,underpowerandauthority.

Answer:
A "convocation" is an assembly of the people where their presence is commanded, under power and authority.