Perhaps you should try some spelling variations:
nigerian politicians » hibernian politicians, nigerian political, civilian politicians
nigerian politics » nigerian political, nigeria's politics, nigerian police
muhammad ahsan » muhammad imran, muhammad irfan
muhammad ammar » muhammad summair, muhammad imran

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((muhammad ahsan) OR (muhammad ammar)) (((nigerian politics) OR (nigerian politicians))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((muhammad ahsan) or (muhammad ammar)) (((nigerian politics) OR (nigerian politicians)))".
• Adding a wildcard symbol may retrieve word variants: ((muhammad ahsan) or (muhammad ammar)) (((nigerian politics) OR (nigerian politicians)))*.