Compare strings with spaces in between

Hi all,

I used this following select stament:

      wa_t001l_lgobe-sign = 'I'.
      wa_t001l_lgobe-option = 'CP'.
*      wa_t001l_lgobe-low = lv_ps
      CONCATENATE '*' lv_psloc '*' INTO wa_t001l_lgobe-low.
      APPEND wa_t001l_lgobe TO r_t001l_lgobe.

   SELECT SINGLE lgort
        FROM t001l
        INTO lv_lgort
        WHERE werks = p_werks
        AND   lgobe IN r_t001l_lgobe.

      IF sy-subrc = 0.
      ENDIF.

r_t001l_lgobe = *AA-  123*

The sy-subrc returns 4. The select stament cannot seems to find strings with spaces in between. Anyone knows what is wrong here?