This is the 4410th most frequent Turkish word.
alamayınca
"Alamayınca" means "when/after [he/she/it/they] cannot get/take [it]."
Here, 'alamayınca' means 'when he couldn't achieve' showing causation due to inability in a temporal context.
Sınavdan yüksek not alamayınca çok üzüldü.
He was very upset when he couldn't get a high grade on the exam.
In this case, 'alamayınca' indicates the result of not being able to take advantage of the condition indicated.
Fırsatı alamayınca büyük bir fırsatı kaçırmış oldu.
When he couldn't seize the opportunity, he ended up missing a great chance.
Here, 'alamayınca' outlines the causal relationship stemming from the inability to gain the assistance desired.