The phrase "a modest segment of" is correct and usable in written English.
It can be used to describe a small or limited part of something, often in a context where you want to emphasize the modesty or smallness of that part.
Example: "The report highlighted a modest segment of the overall budget that was allocated for community development."
Alternatives: "a small portion of" or "a limited part of".
A modest segment can be either treated as one unit/word or divided into two or more units/words because it is equally comprehensible no matter divided or not; the segment 这是 zhè shì 'this is' in the phrase example is of this type.
It is followed by a regular segment titled "A Modest Proposal," which is narrated by a woman with a British-ish accent and the tone of a benign automaton.
They market partially subsidized products and services and charge a modest price to segments of the population with some means, leaving wealthier segments of the population to be served by the commercial sector.
Its 2014 merger with Boots expanded Walgreen's European reach, and though the company gets a modest 12% of revenue from its international retail segment, Boots' 2,500 U.K. stores could dent the company's top line.
In Chinese phrases/sentences, there are three types of non-monosyllabic segments from the point of view of manual word segmentation: ridiculous segments, indivisible segments, and modest segments.
We conclude that there is a modest effect of sequence identity within the enhancer DNA segments that are contacted by the helix-B region of Hin.
We know the mutations associated with developmental syndromes cause a modest activation of MEK activity compared with activating mutations in the activation segment.
Countries like Nepal, Bhutan, and Sri Lanka, however, placed in the middle segment of financially inclusive countries, meaning that these countries had a modest level of financial inclusion that was neither the highest nor the lowest.
"Sully," about the 2009 emergency landing of a US Airways passenger jet, should continue to draw a mature segment of the audience, albeit at a modest rate.
