This is the 1761st most frequent Turkish word.
adaylarının
"Of the candidates"
In this sentence, 'adaylarının' refers to 'of the candidates [of theirs] (genitive-plural possessive)' and is used in a possessive form to describe the relationship between 'partiler' (the parties) and 'adaylar' (the candidates).
Partiler, seçim adaylarının listesini açıkladı.
The parties announced the list of their election candidates.
Here, 'adaylarının' is used as 'of the applicants [=those applying]' to articulate the possession of information regarding them, related to 'üniversite [university]'.
Üniversite başvurusu için adaylarının bilgileri gerekiyor.
Information about the applicants is required for the university application.
In this case, 'adaylarının' specifies possession, linking 'adaylar' (the applicants) to 'şirket' (the company) which is the entity reviewing their CVs.