Perhaps you should try some spelling variations:
regulation affecting » regulations affecting, regulation affect, regulation effective
autochtones land » autochtones canada, autochtones et, autochtones pour
land regulation » und regulation, land speculation, based regulation
data cas » data case, data car, data chase
data can » ata can, data case

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

• Performing a fuzzy search may retrieve terms with similar spellings: autochtones land regulation affecting ((data cas) OR (data can)), etudes de.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "autochtones land regulation affecting ((data cas) OR (data can)), etudes de.".
• Adding a wildcard symbol may retrieve word variants: autochtones land regulation affecting ((data cas) OR (data can)), etudes de.*.