Perhaps you should try some spelling variations:
garches » marches, arches, garces
researched » researcher, researches, researchers, research
larches » marches, arches, larcher, garches
marcher » marche, marches, marchen
larch » march, garch
searched » searches, search

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 (((larches OR marcher) OR larch) OR searched)) OR archer).
• Adding a wildcard symbol may retrieve word variants: (((garches or researched) or (((larches or marcher) or larch) or searched)) or archer)*.