SQL & PL/SQL :: Cursor Not Fetching Special Character

This is the cursor which fetches from View uk_case_recommends_vw and this view calls the table ukcc_case_casenames below is the query

cursor cur_case_name_search is
select a.*,DENSE_RANK() OVER (ORDER BY sc desc) rank
from uk_case_recommends_vw a
where rownum < 2 + 3;
SELECT
/*+first_rows(4) index(u ukcc_case_casename_idx)*/
persistentid,
casename,
FROM ukcc_case_casenames

Here in this table my case name may be with special character or normal .

For Ex ('R V Wilson') - With Special character
('R V Wilson') - Without Special character

Actually my cursor is not fetching with special character ..neither it is not mentioning as no data found. Find the piece of code below.. I am not getting values after opening the cursor.

open cur_case_name_search;
loop
fetch cur_case_name_search into v_case_name_row;
exit when cur_case_name_search%notfound or
v_case_name_row.rank > v_matchingvalue or
[code]......