i want to build backlinks of my site which about some thing as : how to play football in usa,how to play Volleyball in usa,how to play Volleyball in usa, and so on. this is not my real nich but it is exact example of it. if you know : how to play in usa about 27000 monthly searchs in Board search, but it about 200 monthly searches in Exact search. also if you know how to play football in usa is about 200 monthly searches in exact search. other keywords as : how to play Volleyball in usa,how to play Volleyball in usa, ando so on, have low search volume. but all keyword more than 100,000 monthly searches. i did backlinks of : how to play in usa, and i am ranked #5 in board search , but i am still not be ranked for how to play football in usa,how to play Volleyball in usa,how to play Volleyball in usa, and so on. what is the good keyword i should optimize for this nich? i want to be ranked for all : how to play football in usa,how to play Volleyball in usa,how to play Volleyball in usa, ando so on keywords, which about 100,000 monthly searches. Thanks in Advance.