Perhaps you should try some spelling variations:
technology german » technology germany, technology thermal, technology human
german notations » german nation, german inflation, german elections
notations papers » notation papers, negotiations paper, notation part
development en » developpement en, development menu, development eco
amp 4 » amp d, amp _, amp e
amp m » amp d

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "technology german notations papers ((amp 4) OR (amp m)) communication _ a development en afrique.~".
• Adding a wildcard symbol may retrieve word variants: technology german notations papers ((amp 4) OR (amp m)) communication _ a development en afrique.*.