First I collect seed keywords Then I put them into scrapebox keyword scraper . Appends letter A-z at the end of the keyword. And I gather many more keywords. And with results I use the same approach. If the result keyword's # of word is less than five I put it into scrapebox keyword scraper again. And when the iterative steps done, I put all the keywords into Google Adwords Keyword Planner. So what do you think about my procedure ? Could it be developed ?