Perhaps you should try some spelling variations:
heats » heat, heads, seats
cheats » cheat, cheads, cseats, cheaps, wheats, chats
cheat » cheap, wheat, chat
wheath » wheat, sheath, wreath, wdeath
heath » death, heat
cheaph » cheap, cheape, cheah

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