Perhaps you should try some spelling variations:
garcher » archer, karcher, larcher
demarches » demarche, searches, marches, demmarches, demarcher, demsearches
researched » researcher, researches, researchers, research
larches » marches, larcher, larche, garches, lmarches, lsearches
larch » march, garch
searched » searches, search
arches » marches, archer, searches

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((((garcher OR demarches) OR researched) OR ((larches OR larch) OR searched)) OR arches).
• Adding a wildcard symbol may retrieve word variants: ((((garcher or demarches) or researched) or ((larches or larch) or searched)) or arches)*.