Question

specific discussions about how effective the vaccines have been.
include variations of a keyword, such as \vaccin*\ to find all relevant information on vaccines, including \vaccine\ and \vaccination.\
find articles published within the years 2020 to 2023 to get recent studies on the effects of covid - 19 vaccines.
wildcard searches location - based searching numeric ranges
phrase searching

Explanation:

1. Phrase searching targets exact phrases, which matches looking for specific discussions about vaccine effectiveness.
2. Wildcard searches use symbols like to capture keyword variations, which matches finding "vaccin" to cover "vaccine" and "vaccination".
3. Numeric ranges let you set date/number parameters, which matches filtering articles by the 2020-2023 year range.

Answer:

• specific discussions about how effective the vaccines have been → phrase searching
• Include variations of a keyword, such as "vaccin*," to find all relevant information on vaccines, including "vaccine" and "vaccination." → wildcard searches
• Find articles published within the years 2020 to 2023 to get recent studies on the effects of COVID-19 vaccines → numeric ranges