Perhaps you should try some spelling variations:
mining development » mine development, housing development
technology german » technology germany, technology thermal, technology human
development west » development what, development where, development work
german position » germany's position, german politics, german edition
position par » position paper, position der, position a
law 4 » law _, law 1, law a
la 4 » la 14, lam 4, lao 4

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 position par ((la 4) OR (law 4)) communication _ mining development west africa.~".
• Adding a wildcard symbol may retrieve word variants: technology german position par ((la 4) OR (law 4)) communication _ mining development west africa.*.