Perhaps you should try some spelling variations:
wong shiu » wong siu, cong shu, song shin
cost data » test data
what you » what do
you wang » you want, yu wang, you liang
wang der » zwang der, gang der, klang der
der cost » oder cost, user cost, debt cost
data kie » data ki, data kit, data kate

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: what you wang der cost data kie ((wong shiu) OR (song (shin OR skin))) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "what you wang der cost data kie ((wong shiu) or (song (shin OR skin))) ;~".
• Adding a wildcard symbol may retrieve word variants: what you wang der cost data kie ((wong shiu) or (song (shin OR skin))) ;*.