Translation for a search help

Dear experts:

My origenal system is Italian system, when I log in with Chinese system and open a search help for a screen field, the pop up screen of the search help can not show the correct characters. So my question is what I should do to show the correct character in the search help screen? Can I use translation function to do it? How to translate it?

The search help is created in dictionary for the field (PLKOD-PLNNR).