Perhaps you should try some spelling variations:
"edi techniques materials" » "edi technology materials", "adi techniques materials", "esi techniques materials", "media techniques materials"
"edi technical materials" » "edi mechanical material", "edi technological materials", "edi electrical materials", "media technical materials", "defi technical materials", "ii technical materials"
"vdi technical materials" » "vdi mechanical material", "vdi technological materials", "vdi electrical materials", "vii technical materials", "vi technical materials", "viii technical materials"
"edi techniques amateurs" » "adi techniques amateurs", "esi techniques amateurs", "media techniques amateurs", "edi techniques amateur"

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: (((("edi technical materials") OR ("vdi technical materials"))) OR ((("edi techniques materials") OR ("edi techniques amateurs")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"edi technical materials\") OR (\"vdi technical materials\"))) or (((\"edi techniques materials\") or (\"edi techniques amateurs\"))))".
• Removing quotes may allow a broader search: (((( edi technical materials ) OR ( vdi technical materials ))) or ((( edi techniques materials ) or ( edi techniques amateurs )))).
• Adding a wildcard symbol may retrieve word variants: (((("edi technical materials") OR ("vdi technical materials"))) or ((("edi techniques materials") or ("edi techniques amateurs"))))*.