By Marek Strzelecki and Fedja Grulovic PRZEMYSL, Poland/ISACCEA, Romania (Reuters) -Thousands more Ukrainian refugees fled to central and eastern Europe on Wednesday, many with no contacts and nowhere to go, as host countries scrambled to accommodate them. The number of refugees has probably reached 2.1-2.2 million since Russia invaded Ukraine on Feb. 24, the head of the U.N. Refugee Agency (UNHCR), Filippo Grandi, said. Most are women and children, as able-bodied men have been ordered by the Kyiv government to stay home to fight. So far, most refugees have gone to relatives, friends or contac…