"thoroughgoing approach" is a valid and usable phrase in written English.
It means a complete and comprehensive way of approaching something. Here is an example of how it can be used in a sentence: "Our company takes a thoroughgoing approach to addressing customer complaints by investigating the issue thoroughly and finding a satisfactory solution for both parties."
An assistant at the experimental laboratory, University College, London (1901), he was appointed reader in mental philosophy at the University of Oxford (1904), where he wrote Physiological Psychology (1905), demonstrating the value of a thoroughgoing biological approach in place of the traditional philosophical approach.
They adopted a thoroughgoing materialist approach, holding that any attempt to combine or reconcile materialism with idealism must result in confusion and inconsistency.
Advocates of a thoroughgoing evolutionary approach to medicine (such as Gluckman, Beedle and Hanson 2009) can be read as providing a framework within which we can make sense of a number of processes that have an effect on health and disease, but not as offering analyses of health and disease that are tied to fitness.
Acceptance of a thoroughgoing competence/performance distinction thus tends to be a hallmark of Essentialist approaches, which take the nature of language to be entirely independent of other human cognitive processes (though of course capable of connecting to them).
If so, that would seem to preclude thoroughgoing commitments to war or peace or grand causes.
"We could conduct inquiries into thoroughgoing success, but what would be the point?
Mark Green is, at least in politics, as thoroughgoing a professional as Bloomberg is an amateur.
A thoroughgoing commitment to transcendence cannot allow for a God who is involved in human affairs.
In seeking to build useful bacteria (ones that can, say, produce particular drugs in quantity) Dr Venter's thoroughgoing root-and-graft approach may be tidying up a strategy that has been used for 4 billion years, perhaps even returning it to its basics.He does not plan to stick to bacteria, though.
