nothing in particular

There is nothing I want to eat.

私は食べたいものがありません

There is nothing in particular I want to eat.

私は特に食べたいものがありません

There is nothing in particular I want to eat for lunch.

私は昼食に特に食べたいものがありません

There is nothing in particular I want to eat for lunch near the office.

私は会社の近くで昼食に特に食べたいものがありません

There is nothing in particular I want to eat for lunch near the office today.

私は今日は会社の近くで昼食に特に食べたいものがありません