Fixing lookup of raw strokes

There was a bug in the lookup of raw strokes, which prevented strokes from being looked up at all. Now both strokes and translations are used in the prefix lookups.

For example: The stroke KRAEUPB translates to "crane", and KRAEUPB/KWRUPL translates to "cranium". However, the bug prevents "cranium" from being shown in the results, since it can only look for words starting with "crane". This pull fixes the lookup on raw strokes, allowing it to look for results starting with KRAEUPB/