Perhaps you should try some spelling variations:
heats » heat, heads, heath
cheats » cheat, cheads, cheath
hears » hearts, heart, heard
speare » spear
sheath » heath
solution » solutions

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 cheats) OR cham) OR (((hears OR years) OR speare) OR sheath)) of mixing AND solution.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((heats OR cheats) or cham) or (((hears or years) or speare) or sheath)) of mixing and solution".
• Adding a wildcard symbol may retrieve word variants: (((heats OR cheats) or cham) or (((hears or years) or speare) or sheath)) of mixing and solution*.