Try to make your search as simple as possible:
Ajania will find all items including that sequence of letters.
Search results for "Ajania":
"Ajania pacifica" - Chrysanthemum pacificum
"Ajania shiwogiku" - Chrysanthemum shiwogiku
"Rajania ovata" - Brunnichia ovata
"Rajania pleioneura" - Rajania cordata