Non destructive term removal.

        Parameters
        ----------
        terms : list
            list of terms to remove
        ignore_absences : bool, False by default
            if term does not appear, don't raise an error, just move on.

        Returns
        -------
        TermDocMatrix, new object with terms removed.

def remove_terms(self, terms, ignore_absences=False):
        '''Non destructive term removal.

        Parameters
        ----------
        terms : list
            list of terms to remove
        ignore_absences : bool, False by default
            if term does not appear, don't raise an error, just move on.

        Returns
        -------
        TermDocMatrix, new object with terms removed.
        '''
        idx_to_delete_list = self._build_term_index_list(ignore_absences, terms)
        return self.remove_terms_by_indices(idx_to_delete_list)