Perhaps you should try some spelling variations:
oil reserves » oil reservoirs, oil reservoir, gold reserves
aid reserves » acid reserves, vii reserves, grain reserves
loan oil » loan bill
loan aid » loan card, loan act, loan a

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: "(( loan oil reserves ) OR ( loan aid reserves ))".
• Adding a wildcard symbol may retrieve word variants: (( loan oil reserves ) OR ( loan aid reserves ))*.