IK分词后对搜索英文、数字的影响,搜索不出来？

1.以下是索引建立时的mapping
POST /ikanalyse
{   
    "settings": {},
    "mappings": {
        "fulltext": {              
            "_all": {             
                "analyzer": "ik_max_word",             
                "search_analyzer": "ik_max_word",
                "term_vector": "no",             
                "store": "false"         
            },         
            "properties": {             
                "content": {                 
                    "type": "string",                 
                    "store": "no",                 
                    "term_vector": "with_positions_offsets",
                    "analyzer": "ik_max_word",
                    "search_analyzer": "ik_max_word",
                    "include_in_all": "true",
                    "boost": 8             
                }
            }     
        }
}
2 添加数据
POST /ikanalyse/fulltext/4
{"content":"中韩渔警冲突调查：韩警平均每天扣1艘中国渔船abcsader我来了1234.92,3你好,Ok"}
3 查询语句
POST /ikanalyse/fulltext/_search?pretty
{
    "query": {
        "bool": {"must": [
           {
               "term": {
             "content":"1234"
           }}
        ]}
    }
}
但是查询无结果,我想达到的效果是搜索1234，或者abc，或者92都能将此文档搜索出来。请问大神们，可有办法实现啊，还请指教。谢谢