"insufficient instruction" is a perfectly correct and usable phrase in written English.
It is used to describe a situation in which someone hasn't been given enough guidance or information to complete a task or understand a concept. For example, "The recent hire was unable to properly perform her duties due to insufficient instruction from her supervisors."
Even soldiers who were provided with earplugs were given insufficient instruction in their use; mistakenly believing that the earplugs could interfere with low-frequency sounds, like whispered commands during search-and-destroy operations, many chose not to use them.
This may be the result of insufficient instruction about patient participation, which is presented as a continuum between involvement and non-involvement at the undergraduate and graduate levels [ 22].
Instead, the IOC issued a confusing patchwork of conflicting and insufficient instructions to international sport federations (IFs).
Instead, they argue, the IOC "issued a confusing patchwork of conflicting and insufficient instructions to international sport federations" that are "legally infirm" and have already resulted in an "uneven and incomplete response from IFs".
Issues including inadequate communication between dental technicians and dentists and insufficient instructions for technicians have been pointed out in the past [21,30,31].
Moreover, inadequate communication between dental technicians and dentists and insufficient instructions for technicians has been highlighted as issues in the past.
When breast milk became insufficient, instructions were given to use an adapted baby formula (Bona®, Chymos Oy, Finland) or a home-prepared cow's milk formula.
Insufficient instructions and guidance to reviewers and lack of training may compound the problem.
Other comments related to insufficient instructions in the manual concerning specific situations.
A possible source for the lower accuracy could be related to insufficient instructions in the MHCR manual.
Classes began the same year, but, because of insufficient funding, instruction was suspended from 1853 to 1867.
