Perhaps you should try some spelling variations:
"heat transports" » "heat transport", "et transports", "des transports"
"heat transfers" » "heat transfer", "heat tranfer", "wealth transfers"
"head transfer" » "heat transfer", "shear transfer", "load transfer"

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: (("head transfer") OR ((("heat transfers") OR ("heat transports")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"head transfer\") or (((\"heat transfers\") OR (\"heat transports\"))))".
• Removing quotes may allow a broader search: (( head transfer ) or ((( heat transfers ) OR ( heat transports )))).
• Adding a wildcard symbol may retrieve word variants: (("head transfer") or ((("heat transfers") OR ("heat transports"))))*.