You can certainly use Google Adwords keyword, but work with it is difficult and short of details. Perhaps you should try the SemRush service: there is a trial version of it to estimate the advantages. The choice is after you.
Google adward tool is good for keyword research, but, i think there is no such tool available give exact result for how many search is doing. i use google adward for keyword research.
With that being said, its always an estimate of the monthly searches & i have never heard of any tool which claims to give 100% exact listings @ OP: Google is the major search engine so, it would be better to use Google keyword tool to find the estimate searches rather then trying any other tools
https://adwords.google.com/o/Target...000&ideaRequestType=KEYWORD_IDEAS#search.none Or Google "allintitle:yourkeywordhere"