GW170817 demonstrated that compact binary mergers involving neutron stars can be observed and studied through their gravitational-wave and gamma-ray emission, enabling a variety of tests which range from nuclear theory to fundamental physics. Similar events from future observations, however, will likely be more distant than GW170817, suggesting that the corresponding gravitational-wave and gamma-ray signals might be weaker and harder to detect. This prospect calls for methods to jointly analyze weak gravitational-wave and gamma-ray candidates. A search for such weak associations has been carried out using candidates from Advanced LIGO's first observing run and data from the Gamma-ray Burst Monitor on the Fermi satellite. I will describe the methods and results of this search, and the development currently ongoing towards the next joint analyses.