Perhaps you should try some spelling variations:
"h. likert scale government services" » "h. likert scale government securities", "h. likert state government services", "h. likert care government services", "h. likert style government services"
"h. kent water investment series" » "h. kent water investment services", "h. kent water investment barriers", "h. kent water investment treaties", "h. kent water investments series", "h. kent after investment series", "h. kent rates investment series", "h. ment water investment series", "h. kenya water investment series", "h. melt water investment series"

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. kent water investment series") OR ("h. likert scale government services"))~.
• Removing quotes may allow a broader search: (( h. kent water investment series ) or ( h. likert scale government services ))~.
• Adding a wildcard symbol may retrieve word variants: (("h. kent water investment series") or ("h. likert scale government services"))*.