Perhaps you should try some spelling variations:
"a telecommunications sector" » "a telecommunications services", "_ telecommunications sector", "i telecommunications sector", "_ telecommunication sector"
"jews colonization israel" » "jews communication israel", "jews colonization still", "jews colonization history", "its colonization israel", "mars colonization israel", "re colonization israel"
"_ cooperation still" » "_ cooperation scale", "_ cooperation state", "_ cooperation studies"

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: (("_ cooperation still") or ((("jews colonization israel") or ("a telecommunications sector"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("_ cooperation still") OR ((("jews colonization israel") OR ("a telecommunications sector")))).
• Removing quotes may allow a broader search: (( _ cooperation still ) or ((( jews colonization israel ) or ( a telecommunications sector )))).
• Adding a wildcard symbol may retrieve word variants: (("_ cooperation still") or ((("jews colonization israel") or ("a telecommunications sector"))))*.