Perhaps you should try some spelling variations:
heats » cheats, heath, seats, heads
heat » head
cheath » cheadh, heath, cheat, sheath
cheads » cheats, aheads, chears, cleads
heads » leads
cheadh » 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 heat) OR ((cheads OR heads) OR (cheath OR cheadh))) of mixing AND (solution" or solutions").
• The words AND, OR and NOT may confuse the search; try adding quotes: "\"((heats or heat) or ((cheads OR heads) or (cheath or cheadh))) of mixing and (solution\" or solutions\")".
• Removing quotes may allow a broader search: ((heats or heat) or ((cheads OR heads) or (cheath or cheadh))) of mixing and (solution or solutions ).
• Adding a wildcard symbol may retrieve word variants: "((heats or heat) or ((cheads OR heads) or (cheath or cheadh))) of mixing and (solution" or solutions")*.