Perhaps you should try some spelling variations:
garches » marches, garces, larches, gmarches, garcher, gsearches
researched » researcher, researches, research
larcher » archer, karcher, searcher, marcher, garcher
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: (((garches OR (researched OR researchers)) OR ((larcher OR larch) OR searched)) OR arches).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((garches or (researched OR researchers)) or ((larcher or larch) or searched)) or arches)".
• Adding a wildcard symbol may retrieve word variants: (((garches or (researched OR researchers)) or ((larcher or larch) or searched)) or arches)*.