Meaning of SEARCHING in English
search ‧ ing /ˈsɜːtʃɪŋ $ ˈsɜːr-/ BrE AmE adjective [only before noun]
[ Word Family: noun : ↑ search , ↑ research , ↑ researcher ; verb : ↑ search , ↑ research ; adverb : ↑ searchingly ; adjective : ↑ searching ]
1 . intended to find out all the facts about something
searching questions/investigation/examination etc
Interviewees need to be ready for some searching questions.
2 . searching look/glance/gaze a look from someone who is trying to find out as much as possible about someone else’s thoughts and feelings:
She avoided his long searching look.
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012