Perhaps you should try some spelling variations:
heats » heat, heads, heath
cheats » cheat, cheads, cheath, cheaps, wheats, chats
cheat » cheap, wheat, chat
cheath » cheaph, wheath, chath, heath, sheath, creath
cheads » heads, aheads, chears

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: "(heats OR (((cheat OR cheads) OR cheads) OR (cheath OR cheats))) of mixing AND (solution" OR solutions").
• Removing quotes may allow a broader search: (heats or (((cheat or cheads) or cheads) or (cheath or cheats))) of mixing and (solution OR solutions ).
• Adding a wildcard symbol may retrieve word variants: "(heats or (((cheat or cheads) or cheads) or (cheath or cheats))) of mixing and (solution" OR solutions")*.