def search(ES_HOST,index,doc_type,term):
client = Elasticsearch(ES_HOST)
client.cluster = 'yuyuan'
should = []
for key in term:
should.append({"match":{key:term[key]}})
body = {"query":{"bool":{"should":should}}}
print 'body:',body
result = client.search(index,doc_type,body)
return result
