Unable to Sort on calculated field, based on another calculated field

SELECT dbo_tblManagementCommitteeInstance.intID, dbo_tblManagementCommitteeInstance.intManagementCommittee, dbo_tblManagementCommitteeInstance.dtmFrom,
dbo_tblManagementCommitteeInstance.dtmTo, dbo_tblManagementCommitteeInstance.bitD, dbo_tblManagementCommitteeInstance.dtmD, dbo_tblManagementCommitteeInstance.nvcLUC,
dbo_tblManagementCommitteeInstance.intD, dbo_tblIe.nvcName, dbo_tblIe.intMCTerm, dbo_tblIe.intMCTermAlert...