Perhaps you should try some spelling variations:
"coal resource development update focus" » "coal resources development update focus", "local resource development update focus", "total resource development update focus"
"der software development strategy step" » "adept software development strategy step", "free software development strategy step", "a software development strategy step", "der software development strategy steps", "der software development strategy stop"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("der software development strategy step") or ("coal resource development update focus"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("der software development strategy step") OR ("coal resource development update focus")).
• Removing quotes may allow a broader search: (( der software development strategy step ) or ( coal resource development update focus )).
• Adding a wildcard symbol may retrieve word variants: (("der software development strategy step") or ("coal resource development update focus"))*.