Perhaps you should try some spelling variations:
"tecnica education parent." » "technical education parent.", "tecnica educativa parent.", "tecnicas educativas parent.", "tecnica educacion para.", "tecnica education latin.", "tecnica education peru."
"tecnica education spain." » "technical education spain.", "tecnica educativa spain.", "tecnicas educativas spain."
"tecnica education cuba." » "technical education cuba.", "tecnica educativa cuba.", "tecnicas educativas cuba."

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