No result trying to change searchform

I'm trying to customize my searchform and i've put this in my Typoscript:

config.language = nl
# ***********************
#  Search dialog object
# ***********************

tt_content.search.30.dataArray {
    10.label.lang.nl = Zoeken:
    20.label.lang.nl = in
    20.valueArray {
      10.label.lang.nl = Titels en kernwoorden
      20.label.lang.nl = Site-inhoud
    }
    40.value.lang.nl = Zoeken
}



# ***********************
#  Search result page object
# ***********************
tt_content.search.20 {
  layout.10.lang.nl = Zoekresultaat: ###RANGELOW###-###RANGEHIGH### van ###TOTAL###
  noResultObj.10.lang.nl = Helaas, Er zijn geen pagina's gevonden die voldoen aan de opgegeven criteria. Pas je zoekopdracht aan en probeer het nog eens!
  next.lang.nl = Volgende
  prev.lang.nl = Volgende
}

it's proven to be working with other people, but why isn't it working for me?
I'm using templavoila. Do i need to set some parameter??
The translation does show in my TS Object Browser, so i don't see why it doesn't show up on the website.
Help would be much appreciated :p