These variables may be relevant: eval-expression-print-level and eval-expression-print-length: https://www.gnu.org/software/emacs/manual/html_node/emacs/Lisp-Eval.html

See also the variables: print-level and print-length: https://www.gnu.org/software/emacs/manual/html_node/elisp/Output-Variables.html

If you are using edebug, then see also the variables: edebug-print-level and edebug-print-length: https://www.gnu.org/software/emacs/manual/html_node/elisp/Edebug.html

Note that in all cases, unlimited is specified by using nil as the value.

The *Messages* buffer may contain more information than the minibuffer provided that the appropriate print-length is set.

These variables may be relevant: eval-expression-print-level and eval-expression-print-length: https://www.gnu.org/software/emacs/manual/html_node/emacs/Lisp-Eval.html

See also the variables: print-level and print-length: https://www.gnu.org/software/emacs/manual/html_node/elisp/Output-Variables.html

If you are using edebug, then see also the variables: edebug-print-level and edebug-print-length: https://www.gnu.org/software/emacs/manual/html_node/elisp/Edebug.html

Note that in all cases, "unlimited" is specified by using nil as the value.

Failing those, check the following which ought to highlight all such variables which could currently be having an effect:

(apropos-variable "print-\\(length\\|level\\)")

The *Messages* buffer may contain more information than the minibuffer provided that the appropriate print-length is set.

These variables may be relevant: eval-expression-print-level and eval-expression-print-length: https://www.gnu.org/software/emacs/manual/html_node/emacs/Lisp-Eval.html

See also the variables: print-level and print-length: https://www.gnu.org/software/emacs/manual/html_node/elisp/Output-Variables.html

The *Messages* buffer may contain more information than the minibuffer provided that the appropriate print-length is set.

These variables may be relevant: eval-expression-print-level and eval-expression-print-length: https://www.gnu.org/software/emacs/manual/html_node/emacs/Lisp-Eval.html

See also the variables: print-level and print-length: https://www.gnu.org/software/emacs/manual/html_node/elisp/Output-Variables.html

If you are using edebug, then see also the variables: edebug-print-level and edebug-print-length: https://www.gnu.org/software/emacs/manual/html_node/elisp/Edebug.html

Note that in all cases, unlimited is specified by using nil as the value.

The *Messages* buffer may contain more information than the minibuffer provided that the appropriate print-length is set.