A literary allusion is a story about the old ancient shortened or maybe just a few words drawn from ancient writings. In the anthology of Thu Tri Thi Tap, Vu Pham Ham used some literary allusions to make the verses brief, concise, beautiful and lively. The allusions that he used primarily were drawn from legends and ancient Chinese poetry. He did not use so many literary allusions
however, these allusions of his poetry are quite understandable. It may be a few words to remind people of lessons about the moral values of human being, probably the name of a character borrowed in ancient books or a few words taken from the Book of Poetry... With typical ingenious and subtle usages, Vu Pham Ham have increased expressiveness and deep understanding to verses and demonstrate his wide knowledge.