'share overlap' is correct and can be used in written English.
It is used to describe when two elements (concepts, groups, areas, etc.) have something in common or intersect. For example: "The two countries' histories share overlap in the early 19th century."
"When reporting on it, Kaspersky Lab researchers noted it seemed interesting that these organizations shared overlap as previous Turla [another Russian hacking group] targets.
One of the studies we've done as a research group just a while ago, indicated that there's a lot of shared overlap, but there might be even greater emotional processing leading to paranoia and there might be a bit more skewing in reasoning processing in grandiosity.
To examine this possibility, all 18 identified BACs were subsequently subjected to restriction patterning to determine the extent of shared overlap by High Information Content Fingerprinting (HICF) [ 32- 34].
(Renisha was murdered in Dearborn Heights -- a town that was annexed from Dearborn in the 1960s and one that shares overlapping public schools and culture with Dearborn).
Just like living species, many of the extinct species shared overlapping ranges with closely related species (sympatry) through niche differentiation (resource partitioning).
When two neighbouring sequence regions shared overlapping endpoints, the common segment was divided equally between them.
Lrp4 shares overlapping structural elements within its extracellular domain with Lrp5 and Lrp6, particularly with the region that bind Wnts and Wise.
The above results provided further evidence that these two pri-miRNAs produced from the miR-433-127 locus were transcribed from two separate genes that shared overlapping region.
ROQUIN2 shares overlapping mRNA regulatory functions with ROQUIN.
