Hi @yasho13 ,
Here’s a link to the [https://download.lenovo.com/consumer/mobiles_pub/yoga_710-14isk_14ikb_15isk_15ikb_hmm_201605.pdf|service manual] for your laptop.
Scroll to p.52 to view the necessary pre-requisite steps and then the procedure to remove the LCD front cover.
There’s no mention in the parts list regarding adhesives etc so perhaps maybe there may be another problem as to why it’s not holding correctly.