Yes Bangladesh had tough time in recent T20 cricket series losing 2 out of 3 games from UAE. In last gameBangladesh lost easily. UAE team successfully chased down 162 runs winning with 7 wickets still in hand and 5 balls left.
At start of UAE turn to bat their opening players Muhammad Zohaib and Muhammad Waseem did not score much getting only 29 and 9 runs like you already mentioned. But then Alishan Sharafu played incredibly well scoring 68 runs from 45 balls. Asif Khan also helped much by scoring 41 runs. Their great playing together helped UAE win comfortably.
A bunch of part-timers from India, Sri Lanka and Pakistan manages to defeat Bangladesh, who gets $26.74 million per year from the ICC. And that sums up things for Bangladesh for the past few years. Things will get tough for Bangladesh from here onwards. Many of the associate nations are making rapid strides, especially teams such as the United States, Scotland and Netherlands. If Bangladesh can't win a series against the UAE, then they may fare much worse against these teams.