Perhaps you should try some spelling variations:
"regulacion industrial internacional" » "regulacion informal internacional" (Expand Search), "regulacion empresarial internacional" (Expand Search), "regulacion judicial internacional" (Expand Search), "revolucion industrial internacional" (Expand Search), "relations industrial internacional" (Expand Search), "revolucao industrial internacional" (Expand Search)
regulacion informal » negociacion informal (Expand Search), regulacion laboral (Expand Search), actuacion informal (Expand Search)
educacion informal » educacion informe (Expand Search), education informe (Expand Search), ocupacion informal (Expand Search)

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("regulacion industrial internacional") OR ("((regulacion informal) OR (educacion informal)) internacional"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"regulacion industrial internacional\") OR (\"((regulacion informal) OR (educacion informal)) internacional\"))".
• Removing quotes may allow a broader search: (( regulacion industrial internacional ) OR ( ((regulacion informal) OR (educacion informal)) internacional )).
• Adding a wildcard symbol may retrieve word variants: (("regulacion industrial internacional") OR ("((regulacion informal) OR (educacion informal)) internacional"))*.