This is the major factor effecting the targeted search term or phrase in the title tag

Google weighs the title tag very strongly, a good title can increase you CTR . This is one of the best ways to attract search engines and attract visitors too.

Including the targeted keyword in the domain name (e.g. keyword.com)

You are a luck person if you owe a keyword domain, as you will be blessed with visitors, search and web crawlers,

Including the targeted keyword in the anchor tags. Keywords in anchor tags are for some years an important criterion of the Google algorithm.

Using the targeted search term in the visible, HTML text of the page

It is important to use keyword phrases throughout the page where it makes sense.

Including target terms in the webpage URL (e.g. example.com/keyword-phrase). The URL for the pages should be restful (SEO friendly).

Creating an H1 tag with the targeted search term/phrase. The use of H1 tags is very overrated and often abused.

Placing targeted terms in the H2, H3 headline HTML tags

Using target keywords inside images alt and title attributes. When an image is used in place of anchor text, the alt acts as anchor text.. It is an important ranking factor for Image search.

Utilizing keywords in the description meta tag in a webpages HTML header

Positioning keywords in HTML text with strong/bold tags

Utilizing keywords in the keywords meta tag. The keywords Meta tag is not used, and has never been used by Google. There is no search engine left who uses the keywords Meta tag.