I need a couple of modifications in my web site.

I need a couple of modifications in my web site. Main page: [login to view URL] Admin page: [login to view URL] (ID: admin, Pass: freelancer) Modification 1 This site is a simple message-posting site. Any user can post their massage on it. When a massage including unfavorable keywords (such as discriminative or filthy one) has been sent to post, “Forbidden keyword searcher” works and stops that posting. The forbidden keyword is set by admin on the admin page. However, this “Forbidden keyword searcher” doesn’t work properly in the following case. Registered forbidden keyword: BCD Posting massage: ABCDE Posting massage includes a forbidden keyword “BCD”, but the current searcher cannot recognize this as a forbidden keyword. This site is originally design for English language. Therefore, this searcher can recognize only a keyword sandwiched “spaces”. This site will be for Japanese people and Japanese language has no spaces between words in its sentences. So, I need this searcher to recognize the forbidden keywords in the above case and stop the posting. Modification 2 A user can make a violation report to the admin about another user’s posting including discriminative or filthy word, by pressing “report” button. Admin checks the violation report in the admin page and delete it from the website and　server. Currently, the admin only can delete the reported posting. However, some reported posting doesn't include any filthy word and are no need to be deleted. In that case, I want to delete the wrong violation report from the report list in admin page, and leave the posting itself in website and server. Plus, I need the bottom to delete all reported postings by one click.