To unlock these, you need to use Race book - “Race”

• Ability adjustments: +2 DEX, +2 INT, -2 CHA
• Darkvision
• Skill Affinity (Hide) +2
• Skill Affinity (Bluff) +2
• Outsider: Tieflings are considered Outsiders for the purpose of spells
• Human: Tieflings are considered Humans for the purpose of spells
• Level Adjustment +1: a character with this race will be treated as 1 level higher for a purpose of experience rewards from killing monsters.

• Aasimar Ability Adjustments: +2 Cha, +2 Wis.
• Darkvision: Aasimar are able to see in the dark.
• Skill Affinity (Spot): +2 racial bonus to Spot checks.
• Skill Affinity (Listen): +2 racial bonus to Listen checks.
• Celestial Resistance: 5% damage immunity to acid, cold and electricity.
• Spell-like abilities: 1/day - Light as sorcerer of equal level.
• Outsider: Aasimar are considered Outsiders for the purpose of spells.
• Human: Aasimar are considered Human for the purpose of spells.
• Level Adjustment: +1 (character with this race will be treated as 1 level higher for a purpose of experience rewards from killing monsters)

• Orc Ability Adjustments: +4 Str, -2 Int, -2 Cha, -2 Wis.
• Darkvision: Orcs are able to see in the dark.
• Light Sensitivity: Orcs suffer -1 penalty to attack rolls, saves and checks while operating in bright light.

• Kobold Ability Adjustments: +2 Dex, -2 Str, +2 Cha
• Small Stature: +1 size bonus to attack rolls, +1 size bonus to AC, +4 size bonus to Hide checks.
• Darkvision: Kobolds are able to see in the dark.
• Skill Affinity (Search): +2 racial bonus to Search checks.
• Skill Affinity (Set Trap): +2 racial bonus to Set Trap checks.
• Light Sensitivity: Kobolds suffer -1 penalty to attack rolls, saves and checks while operating in bright light.
• Dragonblooded: Kobolds have the dragonblood subtype.