Put phrases in quotation marks: "gender selection"
To search for synonyms and related terms simultaneously, type OR between those terms.
For example: "gender selection" OR "sex selection" OR "family balancing"
Limit your results to websites from a certain domain, such as .eduor .org:, by typing site: in front of the domain. For example: "gender selection" OR "sex selection" OR "family balancing" site:.edu "gender selection" OR "sex selection" OR "family balancing"site:.org "gender selection" OR "sex selection" OR "family balancing" site:.gov "gender selection" OR "sex selection" OR "family balancing" site:.int