Perhaps you should try some spelling variations:
"instituto economia internacional" » "instituto economia institucional", "instituto colombiano internacional", "sustitucion economia internacional"
"instituto tecnologico nacional" » "instituto oncologico nacional", "instituto tecnico nacional", "instituto tecnologico nacionales"
"instituto pedagogico nacional" » "instituto oncologico nacional", "instituto pedagogica nacional", "instituto pedagogico tradicional", "instituto pedagogicos tradicional"
"instituto geologico nacional" » "instituto neurologico nacional", "instituto oncologico nacional", "instituto agroecologico nacional", "instituto geologico regional", "instituto economico nacional"
"instituto economia nacional" » "instituto colombiano nacional", "sustitucion economia nacional", "instituto economia regional", "instituto economica regional"

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: (((((("instituto economia nacional") OR ("instituto economia internacional"))) or ("instituto pedagogico nacional"))) or ((("instituto geologico nacional") or ("instituto tecnologico nacional"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((("instituto economia nacional") OR ("instituto economia internacional"))) OR ("instituto pedagogico nacional"))) OR ((("instituto geologico nacional") OR ("instituto tecnologico nacional")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"instituto economia nacional\") OR (\"instituto economia internacional\"))) or (\"instituto pedagogico nacional\"))) or (((\"instituto geologico nacional\") or (\"instituto tecnologico nacional\"))))".
• Removing quotes may allow a broader search: (((((( instituto economia nacional ) OR ( instituto economia internacional ))) or ( instituto pedagogico nacional ))) or ((( instituto geologico nacional ) or ( instituto tecnologico nacional )))).
• Adding a wildcard symbol may retrieve word variants: (((((("instituto economia nacional") OR ("instituto economia internacional"))) or ("instituto pedagogico nacional"))) or ((("instituto geologico nacional") or ("instituto tecnologico nacional"))))*.