Is it permissible, Islamically, for a student to include strange words and terms from other literary texts within her own analysis of poetic texts, due to not having enough time and the unavailability of the supervisor's assistance?

The researcher's نقل [transference] of another's words without attribution, creating the impression that they are his own, is not permissible. It constitutes deceit (ghish) and blameworthy pretense (tashabbu), as the Prophet, peace be upon him, said: "Whoever deceives is not of us," and "The one who pretends to have been given what he was not given is like one who wears two garments of falsehood." This is a breach of academic integrity, and neither lack of time nor unhelpful supervision can justify it.