You can't outsmart Google. Tips, trick, and secrets for better rankings only work short-term (if at all.) Google is literally constantly tweaking their search results through multi-variate testing of their algorithm.
Content is the best SEO strategy.
More content means more long-tail keyword phrases which means more opportunities for people to find you in searches. If the content is both useful to the user and relevant to your site, it is likely to convert.
The next time you're tempted by the promise of better rankings with no work, remember that Google has a market capitalization of $196,290,000,000 with which to hire teams of people smarter than the self-styled SEO expert who just cold-called you.