Perhaps you should try some spelling variations:
affect fertilizer » africa fertilizer, different fertilizer
scale assessment » scale assessments, cycle assessment, side assessment
rice fertiliser » rich fertilizer, hi fertiliser, isp fertiliser
assessment 3 » assessment 4, assessment 1, assessment 3.1
3 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: ((affect fertilizer) or (rice fertiliser)) scale assessment 3 technical expertise.~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((affect fertilizer) OR (rice fertiliser)) scale assessment 3 technical expertise..
• Adding a wildcard symbol may retrieve word variants: ((affect fertilizer) or (rice fertiliser)) scale assessment 3 technical expertise.*.