Perhaps you should try some spelling variations:
"tri-formation process" » "tri-formation processes", "tri-animation process", "tri-transformation process"
"tri-information processing" » "tri-information processesing", "tri-inanimation processing", "tri-intransformation processing"
"tri-forming process" » "tri-forming processes"

Try widening your search to All Fields.

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• If you are trying to use Boolean operators, they must be ALL CAPS: (("tri-forming process") OR ((("tri-formation process") OR ("tri-information processing")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"tri-forming process\") or (((\"tri-formation process\") OR (\"tri-information processing\"))))".
• Removing quotes may allow a broader search: (( tri-forming process ) or ((( tri-formation process ) OR ( tri-information processing )))).
• Adding a wildcard symbol may retrieve word variants: (("tri-forming process") or ((("tri-formation process") OR ("tri-information processing"))))*.