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

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 (cheath OR heath))) of mixing AND (solution" or solutions").
• The words AND, OR and NOT may confuse the search; try adding quotes: "\"(heats or ((cheat or cheads) or (cheath OR heath))) of mixing and (solution\" or solutions\")".
• Removing quotes may allow a broader search: (heats or ((cheat or cheads) or (cheath OR heath))) of mixing and (solution or solutions ).
• Adding a wildcard symbol may retrieve word variants: "(heats or ((cheat or cheads) or (cheath OR heath))) of mixing and (solution" or solutions")*.