Try to make your search as simple as possible:
Licuala will find all items including that sequence of letters.
Search results for "Licuala":
"Licuala elegans" - Licuala pumila
"Licuala gracilis" - Licuala pumila
"Licuala horrida" - Licuala spinosa
"Licuala muelleri" - Licuala ramsayi