Calcoolate lets us use a virtual scientific calculator online. You can directly input mathematical commands from the keyboard. The tool looks clean as there are no digits, just a handful of buttons for mathematical functions like sin, cos, tan, log etc. Its best for doing simple calculations.
Say you want to find some good Museums in New York City. If you simply type USA Museums you will end up with a result which shows pages matching your query but all the results may not match your exact phrase. But if you search the keyword phrase enclosed within ” ” [“USA Museums”] you will get result of pages containing the exact phrase.