Help with the title for my BA thesis

[sonia]

Hi,
I am writing my BA thesis about translating idioms. Can you tell me which of these titles is better and grammatically correct?

1. Translation of idioms with the concept heart from English to Polish: Strategies and Challenges

2. Translation of idioms with the concept  of heart from English to Polish: Strategies and Challenges

3. Translation of idioms connected with the concept  of heart from English to Polish: Strategies and Challenges
 

[Daniel]

Any of those could be OK, but for some reason they all sound just a little unnatural to me.

I'd suggest one of these:

Translation of heart idioms from English to Polish: Strategies and Challenges

Translation of idioms involving the concept of heart from English to Polish: Strategies and Challenges


Note: I'm not sure exactly what 'heart' means-- love? biology? Is it every use of this word, or a particular semantic field? It might be clearer if you had something like "heart and love idioms" if that is appropriate for your research.