For flee, you need to try this:
bonus bFlee,n; Flee + n
For draining sp, try this:
bonus2 bSPDrainRate,n,x; n/10 % probability to drain x% SP when attacking
And for increasing damage received by Demi-Humans, you would want to try this:
bonus2 bSubRace,n,x; +x% damage reduction against race n n: 0=Formless, 1=Undead, 2=Brute, 3=Plant, 4=Insect, 5=Fish, 6=Demon, 7=Demi-Human, 8=Angel, 9=Dragon, 10=Boss monster, 11=Other than (normal monster) boss monster
But keep in mind, if you leave it as a positive number, it'll help reduce damage from a race, but if you use a negative, it'll increase damage from race.