code: public CBSearchResult search(String CorpNum, String DType, String SDate,
  								 String EDate, String[] State, String[] TradeType,
  								 String[] TradeUsage, String[] TaxationType, int Page,
  								 int PerPage, String Order) throws PopbillException {
  		return search(CorpNum, DType, SDate, EDate, State, TradeType, TradeUsage, TaxationType, "", Page, PerPage, Order);
  	}
docs: /*
  (non-Javadoc)
  @see com.popbill.api.CashbillService#search(java.lang.String, java.lang.String, java.lang.String, java.lang.String, java.lang.String[], java.lang.String[], java.lang.String[], java.lang.String[], int, int, java.lang.String)