Trade pawns in the center to open up diagonals. The fewer pawns there are in the center, the more scope your bishops will have. Aiming both of your bishops at the opponent's king also increases the chance for tactical and mating combinations. Remember, without pawns in the center, enemy knights won't be able to use a centralized outpost.
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[Event "rated untimed match"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "Unknown"]
[Black "Unknown420"]
[Result "1-0"]
[Annotator "David Hayes"]
[BlackElo "0"]
[FEN "8/7p/5N2/p2p4/3BbR2/7k/r7/5K2 w - - 0 1"]
[SetUp "1"]
[TimeControl "0"]
[WhiteElo "0"]
1. Nxe4 dxe4 2. Bf2 Ra1+ 3. Be1 e3 ( { Black can try: } 3... Rxe1+ 4. Kxe1 a4 5. Rxe4 a3 6. Ra4 h5 7. Rxa3+ Kg2 8. Ke2 h4 9. Ra8 h3 10. Rg8+ Kh1 11. Kf3 h2 12. Rb8 Kg1 13. Rb1# ) 4. Rh4# 1-0