private static bool ReplaceText(string strSearchedText, ISOCode.Language eSearchedLang, string strTextToChange, ISOCode.Language eLangToChange)
{
    bool bRetVal;
    MDTranslationDatabase oTrDB = new MDTranslationDatabase();
    oTrDB.Open(false);

    MultiLangString oMLS = new MultiLangString();
    oMLS.AddString(eSearchedLang, strSearchedText);
    string strComment = "";

    bRetVal = oTrDB.FindKeyword(eSearchedLang, ref oMLS, ref strComment);
    if (bRetVal)
    {
        oMLS.DeleteString(eLangToChange);
        oMLS.AddString(eLangToChange, strTextToChange);

        LanguageList lstLangs = new LanguageList();
        lstLangs.Add(eLangToChange);

        bRetVal = oTrDB.EditKeyword(strSearchedText, eSearchedLang, oMLS, lstLangs);
    }
    oTrDB.Close();
    return bRetVal;
}