Why can't I monetize this one???

[Len]

Not new to domaining but did not know where to ask this question so hope someone reading this forum can help.
I have a domain PotMart.com that is getting around 300 hits/mth and has been for some time now. The problem is I am unable to convert the hits to RPC. I have tried things like Pot, marijuana, hemp, crock pot, pots, weed, nothing seems to work! Does anyone have any ideas as to what the visitors are looking for??
Visitors stats are as follows :

Japan 58,2 %
France 20,6 %
United States 16,5 %
Canada (en) 1,4 %
South Korea 1,4 %
Singapore (en) 0,5 %

Thanks,

Len.

 

[Len]

Thanks xmith,
Will try anything!! Keeping my fingers crossed.

len.

 

[Len]

Finally got my first real click today thanks to Xsmith. Hopefully this is a sign of things to come!
Just like to say a big thank you to all of you Npr's who have given their help and advice.

Len.