The truth is that it couldn't be simpler:
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2.- Use more than just synonyms (linguistic or implicit disambiguation)
Interestingly, this is the first thing people usually say when I ask, “What do you think you need to do to get organic traffic from semantic search?”
Most people answer “use synonyms for the keywords we want to rank for.”
Using synonyms is fine, but it is not a panacea and, often, this alone will not help Google identify the subject matter of our content.
This is what is known as linguistic or implicit disambiguation, which conduit cn mobile database consists of indicating to Google the unequivocal meaning of our content thanks to the entities that surround the term we want to position.
If, for example, we are talking about “golf” there will be other concepts that should accompany the term on the page, for example: “green”, “palo”, “verdy”, “putter”...
In this way, we will be telling Google that when we talk about “golf”, we are referring to the sport… and not to the Volkswagen car model (for example).
Move
If what Google identifies are themes , why do you continue focusing on keywords ?
Let's be clear: I'm not saying you should stop doing keyword research, quite the opposite.