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

Try widening your search to All Fields.

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 (chears OR (((cheath OR cheat) OR (cheads OR heads)) OR heath))) of mixing AND (solution" OR solutions").
• Removing quotes may allow a broader search: (heats or (chears or (((cheath or cheat) or (cheads or heads)) or heath))) of mixing and (solution OR solutions ).
• Adding a wildcard symbol may retrieve word variants: "(heats or (chears or (((cheath or cheat) or (cheads or heads)) or heath))) of mixing and (solution" OR solutions")*.