Problem with words like "exopeptidases"

When I press <Ctrl>+C+C to look up words like "exopeptidases" , "endopeptidases", "glycoproteins",...etc .
In all my offline dictionaries, it doesn't not find anything, until I manually select "exopeptidase" , "endopeptidase", "glycoprotein" ,...etc .
To GD, most words that end with "s" still works, just in some cases it doesn't work.
(I already check the English morphology.)
Anything I can do to get a better result?
Thanks.
In all my offline dictionaries, it doesn't not find anything, until I manually select "exopeptidase" , "endopeptidase", "glycoprotein" ,...etc .
To GD, most words that end with "s" still works, just in some cases it doesn't work.
(I already check the English morphology.)
Anything I can do to get a better result?
Thanks.