Perhaps you should try some spelling variations:
fishing data » existing data, fishing boats, fishery data
fishing nets » fishing fleets, fishing boats, fishing gear
human bone » human bones, human body
tax coping » a coping, law coping, pay coping
tax cong » tax code, tax cost
bone a » zone a, bone _, done a

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: life ((fishing data) OR (fishing nets)) human bone a ((tax cong) OR (tax coping)) shu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "life ((fishing data) OR (fishing nets)) human bone a ((tax cong) or (tax coping)) shu ;~".
• Adding a wildcard symbol may retrieve word variants: life ((fishing data) OR (fishing nets)) human bone a ((tax cong) or (tax coping)) shu ;*.