Perhaps you should try some spelling variations:
"karl-car" » "karl-carl"
"karl-care" » "karl-carle", "karl-case"
"kalt-agar" » "kali-agar", "kalk-agar", "kalt-gar"
"kant-agar" » "kant-gar", "kann-agar", "kent-agar"
"kat-agab" » "kate-agab", "katz-agab", "kato-agab", "kat-arab"

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: (("karl-car" OR "karl-care") OR ("kalt-agar" OR ("kat-agab" OR "kant-agar")))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"karl-car\" OR \"karl-care\") or (\"kalt-agar\" or (\"kat-agab\" or \"kant-agar\")))*".
• Removing quotes may allow a broader search: (( karl-car OR karl-care ) or ( kalt-agar or ( kat-agab or kant-agar )))*.