Try to make your search as simple as possible:
Garcia will find all items including that sequence of letters.
Search results for "Garcia":
"Garcia mayana" - Garcia nutans
"Solanum garcia-barrigae var. d" - Solanum donachui
"Solanum garciae" - Solanum chacoense
"Thelocactus garciae" - Thelocactus conotheles ssp. garciae