Here are a few tips to better search results.
Be Specific: The more specific your query, the better your results.
Use Multiple Keywords: Combine multiple keywords to narrow down results.
Experiment with Synonyms: Different terms can yield different results.
Wildcard search: Use the * (asterisk) operator. NOTE that this operator works only at the end of a word. Example: Bio*, Area*, etc.
Alternatively, you can navigate through the sub categories within to zero down on the Formulas of interest.