Perhaps you should try some spelling variations:
"monotypic taxon" » "genotypic taxon", "monotypic saxon", "monotypic axon", "monotypic faxon"
"monotypic talon" » "genotypic talon"
"genotype taxon" » "genotype saxon", "genotype axon", "genotype faxon", "genotipo taxon"
"phenotypic taxon" » "phenotypic saxon", "phenotypic axon", "phenotypic faxon", "phenotype taxon", "genotypic taxon", "phenotypes taxon"

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 talon"))) OR ((("genotype taxon") OR ("phenotypic taxon"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"monotypic taxon\") OR (\"monotypic talon\"))) OR (((\"genotype taxon\") OR (\"phenotypic taxon\"))))".
• Removing quotes may allow a broader search: (((( monotypic taxon ) OR ( monotypic talon ))) OR ((( genotype taxon ) OR ( phenotypic taxon )))).
• Adding a wildcard symbol may retrieve word variants: (((("monotypic taxon") OR ("monotypic talon"))) OR ((("genotype taxon") OR ("phenotypic taxon"))))*.