I have searched for a keyword "MLM" in Google Trends (location - Benin) which shows me there is some rising searches about this term but when I search this keyword in Google Keyword Planner Tools with the same location (Benin), I didn't get any result. What is the reasons can anyone tell me? Which data is correct Google Trends or Google Keyword Planner Tool for keyword analysis?

Google Keyword Planner is one of the easiest way To analyze our keywords for our website  to get promoted  in Serp

Google's Keyword Planner will give you data on specific keywords (few years ago, Google showed specific figure but now they are showing ranges). As for the Trends, it doesn't really give a range on a keyword but it's more on the trend of a topic. These two tools have different usage but they're a deadly combination if you're looking for a niche or a topic to write in the future.

Google Keyword Planner Tool & Google Trends both are give correct result but i am using Google Keyword Planner Tool Because we easily analyse the keyword.

Google Keyword Planner is one of the easiest way.........

Google Trends & Google Keyword Planner Tool both are give correct data. Mostly i use Google Keyword Planner Tool.