I think you should use some common keyword that are generally used by everyone and moreover you can create back links by using blog posting, forum posting, video posting etc...
for increasing traffic we must do off page SEO. avoid using very difficult key word.
so social media marketing in social media sites like Facebook, g+,twitter etc
Do social media marketing using facebook, g+, twitter etc
also do SEO using Edu blog post, Blog post, info graphic, video creation and posting etc..
Try to get ranked for those keyword which genuinely have some monthly searches. If you will rank for such keywords which has huge monthly searches then you will definitely got a lot of traffic.
Ranking for such keyword which has almost 0 monthly searches will never give you traffic.
Here are the possible and effective steps which helps to increase website traffic or improve Search engine result page.
1. Use social networking site
2. Do QnA in Quora and create topic and do possible things which are given in the topic and tag that topic while discussion.
Keyword ranking is more important because it helps in bringing traffic to the sites.
Do sharing through social accounts
-- I do think it is advisable to review yet again the key phrase, pick out higher visitors volume key phrases. And also perform many social media routines likewise in addition to post many system and gives about social media web sites.
Few tips for generating traffic towards your website-
Target Your Content to an Audience Likely to Share.
Participate in the Communities Where Your Audience Already Gathers.
Make Your Blog's Content SEO-Friendly.
Use social networking platforms to Share Your Posts & Find New Connections.
Conduct Keyword Research While Writing Your Posts.
Participate in Q+A Sites.
Target your audience in a right way by building relevant backlinks and also if you have some budget, then start advertisement on Facebook & twitter.