Excel 2007 : If formula in combination with OR, AND and LOWER

Hello everybody,

I have a problem figuring out how to make a statement work.
The situation is the following:

I have several cells filled with single words. Lets say:
A1=hello
A2=wonderful
A3=world

Then I have several other fields filled with sentences e.g.:
B1=Mr. Smith says: "Hello!"
B2=The world is wonderful.
B3=Hello wonderful world.

Now I would like to have two results.

1. First of all a condition where one of the criteria is met: one of the three fields A1, A2, A3 is found in B1, B2 or B3.

I would suggest something like:
=IF(ISERROR(FIND(OR(LOWER(A1;A2;A3));OR(LOWER(B1;B2;B3));1));"No";"Yes")

The LOWER is used to be sure that we have the same letter case as we know that FIND is case sensitive. This example keeps saying that I have entered too many arguments. I am sure that there is something wrong with my syntax.

1. Second Condition would be. Detect if in one sentence all keywords A1, A2, A3 appear.

My Idea that does not work:
=IF(ISERROR(FIND(OR(LOWER(A1;A2;A3));LOWER(B1);1));"No";"Yes")

Same error.

Thanks for your help in advance!