The "Periodic Table of Food" is not a recognized naming convention for chemical compounds. However, assuming you meant to write the chemical formulas of the compounds, their names using the conventional nomenclature are:
BPo - This is an invalid chemical formula as the element symbol "Po" does not exist. If you meant "Po" as "Poison", it is still an invalid chemical formula as "Poison" is not a recognized symbol for any element.
Bl2Tu - This is an invalid chemical formula as the element symbols "Bl" and "Tu" do not exist. If you meant "Bl" as "Blue" and "Tu" as "Tuna", it is still an invalid chemical formula as "Blue" and "Tuna" are not recognized symbols for any element.
Cr2Sn - Chromium(II) stannide
LiSr2 - Lithium strontium diide
Or3Ba2 - Oregano barium triide