The first section contains the abstracts of the journal articles.
The second section contains reviews of publications.
The third is the index section. This is subdivided into an author, source and subject index. What you looked up in the thesaurus are subject terms.
In the third section in the subject index of Sociological Abstracts look for the Main Term from the thesaurus. The terms are listed in alphabetical order. You will see the Main Term in boldface and following it are the article titles that discuss that subject.
If your Main Term is not listed in the subject index do not lose heart. Keep in mind that each volume of the Sociological Abstracts lists only a certain time period of journal articles and that if you use a different volume you might find your term.