Many companies these days use applicant tracking systems (ATS) to match resumes to job descriptions. Different applicant tracking systems (ATS) will treat your resume differently. From what I've been told, some can understand certain synonyms, others can't. Some will consider the placement of key words as well as frequency. There are sites that will help you estimate how an ATS will match. One is Jobscan - https://www.jobscan.co/?ref=68153. (This links will give me credit for referring you to the site.)