Final answer:
Lack of funding and political obstacles have hindered Nautico's work searching for Earhart's plane.
Step-by-step explanation:
The two factors that have hindered Nautico's work searching for Earhart's plane are lack of funding and political obstacles. Lack of funding makes it difficult for Nautico to secure the necessary resources and technology for the search, while political obstacles create challenges in terms of permits, regulations, and cooperation with governments. These factors have made the search for Earhart's plane more challenging for Nautico.