Hanna is a form of the name Hannah, as well as a name from the Hausa language meaning "joy."
This name is likely derived from the Russian name Ekaterina.
Lina is a name in both the Arabic and Hausa languages. It is also used as a nickname for names ending in -lina, such as Carolina.
This may also be a pet name for the Yoruba name Folasade meaning "honor earns a crown".
Tanisha may be related to a Hausa day name for children born on Monday.
It could also be a modern coinage from the preffix Ta- with Aisha, or perhaps an elaborated form of Tania.