Perhaps you should try some spelling variations:
scale assessment » scale assessments, care assessment, cycle assessment
technical report » technical support, technical experts
bio fertilizer » rich fertilizer, _ fertilizer, n fertilizer
assessment a » assessment _
a technical » _ 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: ((bio fertilizer) or (from fertilizer)) scale assessment a technical report.~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((bio fertilizer) OR (from fertilizer)) scale assessment a technical report..
• Adding a wildcard symbol may retrieve word variants: ((bio fertilizer) or (from fertilizer)) scale assessment a technical report.*.