Perhaps you should try some spelling variations:
"land soils basics series" » "land soil basics series", "land soils basic series", "land soi basics series", "upland soils basics series", "sandy soils basics series"
"cold soils a series" » "could soils a series", "sold soils a series", "old soils a series"
"cold soils _ series" » "could soils _ series", "sold soils _ series", "old soils _ series"

Try widening your search to All Fields.

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: (("land soils basics series") OR ((("cold soils a series") OR ("cold soils _ series")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"land soils basics series\") or (((\"cold soils a series\") OR (\"cold soils _ series\"))))".
• Removing quotes may allow a broader search: (( land soils basics series ) or ((( cold soils a series ) OR ( cold soils _ series )))).
• Adding a wildcard symbol may retrieve word variants: (("land soils basics series") or ((("cold soils a series") OR ("cold soils _ series"))))*.