"manifest problems" is correct and usable in written English.
You can use it when referring to an issue or issues that are easily understood or seen. For example, "The economic downturn has manifested a variety of problems within the community."
"Initial investigation was again deficient and failed to identify manifest problems".
The Lone Ranger – despite manifest problems and a scathing reception in the US last week – is not quite the flat-out, jaw-dropping calamity that some would have had us believe.
Fixing any one of CNN's manifest problems — mornings that are not competitive, evening ratings that are deeply embarrassing and a late-night transplant in Piers Morgan who is being rejected by the viewing public — will make him look like a genius.
We also aimed to limit the review to prevention programs, and exclude interventions offered to children seeking clinical treatment for manifest problems.
Withdrawal and MAYSI Alcohol and Drug abuse had a protective effect, meaning that youth experiencing problems in these domains were less likely to manifest problems with RADI aggression.
It makes sense that the social maladjustment domain is highly correlated with this factor because individuals who engage in bingeing and vomiting also manifest problems with social adjustment [ 48, 49].
One with a high rate of suicides invariably manifests problems that go beyond the suicides.
Since calcarea carbonica at 1C formulation manifested problems related to solubility therefore further experiments were performed with calcarea carbonica 6C.
For each dimension, scores at or above the 80th percentile of the distribution were used to classify children as manifesting problem behaviours, consistent with prior studies using these scales [ 29].
But there is little public reference to this fact, even though many of these now manifest similar problems to Greece.
Lyme disease, a systemic illness resulting from infection with the spirochete Borrelia burgdorferi, can occasionally manifest with problems such as facial nerve paralysis, pharyngeal pain, and associated dysphagia.
