While not nearly as discoverable or convenient there is some google UI built around a few of these. 1. Click the "Tools" link just under the search button and

While not nearly as discoverable or convenient there is some google UI built around a few of these. 1. Click the "Tools" link just under the search button and you get options for restricting your search to a specific time range and making it an exact match. 2. If a term isn't included in a result sometimes Google will show "Missing: <search term> ‎| Must include: <search term>" just under the entry