Istekhara from the Holy Qur'an has many conditions, without fulfilling
all of which, no one will be able to do it and understand it properly.
Among the conditions is the ability to understand the meaning of the
Qur'anic verses. Not only the verse which comes on the top of the page
but also the meaning of the verse before it and after it.
Many of the leading Ulema advise to seek Istekhara of Tasbeeh rather than of the Holy Qur'an except for those who really have the all its conditions
met. Some people refer to the translation to understand the meaning
which is not accurate always, and any sort of less understanding of the Holy
Qur'an can give inappropriate understanding of the result of the
Istekhara. There is no difference between the Istekhara of Tasbeeh and
the Holy Qur'an because we are seeking guidance from the same source
who is Allah (SWT). So there is no point in thinking that the Istekhara
from the Holy Qur'an is more appropriate especially when the
conditions of the Istekhara of Holy Qur'an are not fully met.