Perhaps you should try some spelling variations:
"produccion planning" » "production planning", "produccion plan", "produccion planeacion"
"production planting" » "production planning", "production plan", "production mapping", "production planing", "production planninging", "production policying"
"produccion planta" » "produccion plan", "produccion para", "production plan"
"production plant" » "production plan", "production planning", "production policy"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("produccion planning") or ((("production planting") OR ("production plant"))))) or ("produccion planta"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("produccion planning") OR ((("production planting") OR ("production plant"))))) OR ("produccion planta")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"produccion planning\") or (((\"production planting\") OR (\"production plant\"))))) or (\"produccion planta\"))".
• Removing quotes may allow a broader search: (((( produccion planning ) or ((( production planting ) OR ( production plant ))))) or ( produccion planta )).
• Adding a wildcard symbol may retrieve word variants: (((("produccion planning") or ((("production planting") OR ("production plant"))))) or ("produccion planta"))*.