Just wanted to add that in addition to titles, tags and descriptions containing your keyword, it's important that the spoken video content also contain the keyword phrase, ideally somewhere near the beginning. YouTube does parse the auto-generated closed caption file and includes that in the algorithm, even if it's a small part of the equation. So, it's important to go check the auto-generated closed caption file to make sure it's somewhat correct. For instance, I have a low carb cooking channel, and I probably say "low carb" about 15 times in every video. But for some reason YouTube often hears it as "low CARD" instead of "low carb." And that's a huge missed opportunity to have my keyword phrase included in the entire SEO equation multiple times. So, quickly scan the auto-generated closed caption file and correct any glaring mistakes in the wording, particularly checking the spelling and accuracy of your keywords for that particular video. Then save and publish the updated, corrected CC file and unpublish the auto-generated one with the errors. This helps YouTube's algorithm, but more importantly it helps hearing impaired viewers enjoy your content.