The phrase "a small but tangible" is correct and usable in written English.
It can be used to describe something that is minor in size or significance but still has a noticeable or measurable impact.
Example: "The project resulted in a small but tangible improvement in team productivity."
Alternatives: "a minor yet significant" or "a slight but noticeable".
It's a small but tangible behaviour change which will, hopefully, impact on patients.
But in the 113th Congress there are six openly gay or bisexual members in the House — a small but tangible sign that their presence at the highest levels of government is no longer something only whispered about.
The study documents a small but tangible supplier-buyer relationship between Russia and Iran during a time when President Bush is pressing Moscow to end the Antiballistic Missile Treaty.
But putting effort into translation projects would be a small but tangible step in the right direction, and it is to be hoped that the GLF – happily growing into a very successful annual fixture – can help out with some sponsorship.
All this made for a small, but tangible success story in a region with very few.
This approach represents a valuable contribution in decision-making processes that face the challenging task of achieving small but tangible modifications of dietary behaviour in order to reduce nutrition-related chronic health concerns on the long term.
New Labour won plaudits early on, including for the green paper The Learning Age, and made small but tangible gains.
All that could be academic, however, if Mr Romney's small but tangible drift in swing states and national polls continues.
The WTO's "single undertaking" approach, in which "nothing is agreed until everything is agreed", prevented talks from concluding in 2008 with small but tangible achievements.In this section Slow, slow, quick How many one-offs make a trend?
A small but telling detail.
