Perhaps you should try some spelling variations:
"monotypic taxon" » "genotypic taxon", "monotypic talon", "monotypic axon", "monotypic taxol"
"monotypic faxon" » "genotypic faxon", "monotypic axon"
"monotypic fanon" » "genotypic fanon", "monotypic canon", "monotypic manon", "monotypic danon"
"monotypic saxon" » "genotypic saxon", "monotypic salon", "monotypic saxo"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("monotypic taxon") OR ((("monotypic faxon") OR ("monotypic fanon"))))) OR ("monotypic saxon"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"monotypic taxon\") OR (((\"monotypic faxon\") OR (\"monotypic fanon\"))))) OR (\"monotypic saxon\"))".
• Removing quotes may allow a broader search: (((( monotypic taxon ) OR ((( monotypic faxon ) OR ( monotypic fanon ))))) OR ( monotypic saxon )).
• Adding a wildcard symbol may retrieve word variants: (((("monotypic taxon") OR ((("monotypic faxon") OR ("monotypic fanon"))))) OR ("monotypic saxon"))*.