Perhaps you should try some spelling variations:
garche » garch, garcke, larche
researched » researches, researchers, research
researcher » researchers, research
larches » larcher, larche, searches, lsearches
searched » searches, search
arches » archer, searches
marches » marcher, msearches

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: (((garche OR (researched OR researcher)) OR ((larches OR marche) OR searched)) OR (arches OR marches)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((garche or (researched OR researcher)) or ((larches or marche) or searched)) or (arches or marches))".
• Adding a wildcard symbol may retrieve word variants: (((garche or (researched OR researcher)) or ((larches or marche) or searched)) or (arches or marches))*.