Then you have to get rid of the VO & VO_Signed fields in your query. They have unique values that is throwing off the Group By:
SELECT tblPhase.Phase_No, tblPhase.Roads_Bond_Received, tblPhase.Roads_Bond_Ref_No, tblPhase.Roads_Adopted, tblSite.Site_No, tblSite.Department_Number, tblSite.Name...