Perhaps you should try some spelling variations:
different fertilizer » affect fertilizer, different entities, different families
technical experts » technical expertise
trade assessment » rate assessment, trait assessment, trainer assessment
care assessment » scale assessment, change assessment, scale assessments
a technical » 2 technical

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

• Performing a fuzzy search may retrieve terms with similar spellings: different fertilizer ((trade assessment) or (care assessment)) a technical experts.~.
• If you are trying to use Boolean operators, they must be ALL CAPS: different fertilizer ((trade assessment) OR (care assessment)) a technical experts..
• Adding a wildcard symbol may retrieve word variants: different fertilizer ((trade assessment) or (care assessment)) a technical experts.*.