One way to "stack the deck" so to speak is to ensure the keyword is used in the Topic Title. Aside from that, ensure it is also used in the Keywords field of the topic as well as in heading levels. For example, a keyword in a Heading 3 will be trumped by the same keyword in a Heading 1. And that is trumped by the keyword in the Topic Title.
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Thanks, Rick. Our articles are built that way, mostly. For a variety of reasons, we need a stronger way to weight results. Do you know if putting the same word in the keywords more than once has any effect at all? I am going to do some testing with it this afternoon but was hoping someone might have a definitive answer.
For anyone who stumbles upon this, no - the search engine only counts the word once and ignores all other instances. Search results will not get more weight for having the same keyword multiple times.