Google Adwords Keytool?

[Fearlesstrip661]

it depends on the match type. You should used exact match data for getting precise volumes. Phrase match is also Ok to use for longtails.

I know that "to" is disregarded by Adwords because it's a filler word, so is "a". But I don't know about "and".

There are three match types in the keyword tool phrase, match and broad. Here's an article explaining match types: http://www.karimium.com/understand-keyword-match-types/

You really ought to learn the match types.

tl;dr use "phrase" or "exact" match types.