"hidden reaches" is a correct and usable term in written English.
You can use it to describe a place or area that is hidden, perhaps unreachable or undiscovered. For example, "The hidden reaches of the cave held untold wonders."
But as things progressed from dating to wedding planning, with all its stresses and expectations, the anorexia she'd been hiding reached a breaking point.
The blue cubes can be used as additional platforms to get to areas or reach hidden goodies that you couldn't normally reach.
To build a better understanding of their local carer population, and to reach hidden carers, forward-thinking local authorities are undertaking research that combines quantitative detailed data analysis of health and social care public datasets with qualitative engagement through interviews and focus groups.
Active sites, on the other hand, are hidden beyond the reach of local communities.
Iran says its program is strictly for energy-generation and other peaceful purposes, but Washington suspects a hidden agenda to reach nuclear-weapons capability.
Snowball technique is the simplest approach to reach hidden populations.
The Internet is a useful tool to reach hidden populations, such as illicit drug users [ 11].
In recent years methods such as respondent-driven sampling (RDS), based on social networks, have become increasingly popular to reach hidden populations [ 17].
If the efficacy of this therapy is demonstrated in this RCT, Snow Control will be integrated into the basic services for cocaine users, and we will potentially be able to reach "hidden" cocaine consumer groups in the general population [ 11] in a remarkably positive cost-benefit relation [ 12].
Respondent-driven sampling (RDS) is a peer-referral sampling and analysis method that provides a way to account for several sources of bias and calculate population estimates [ 4– 6] now widely used to reach hidden populations including many at high risk for HIV [ 7].
