Perhaps you should try some spelling variations:
"h. kept baker investment series" » "h. kept baker investment services", "h. kept baker investment barriers", "h. kept baker investment treaties", "h. kept water investment series", "h. kept water investments series", "h. kept better investment series", "h. kent baker investment series"
"h. agent based investment period" » "h. agent based investment policy", "h. agent based adjustment period", "h. agent based investment operations", "h. agent fixed investment period", "h. agent best investment period", "h. agent bond investment period"

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: (("h. kept baker investment series") OR ("h. agent based investment period"))~.
• Removing quotes may allow a broader search: (( h. kept baker investment series ) or ( h. agent based investment period ))~.
• Adding a wildcard symbol may retrieve word variants: (("h. kept baker investment series") or ("h. agent based investment period"))*.