Perhaps you should try some spelling variations:
"carl hermann pethe" » "call hermann pethe" (Expand Search), "car hermann pethe" (Expand Search), "cars hermann pethe" (Expand Search), "carl herman pethe" (Expand Search)
"carlo hermawan pethe" » "callo hermawan pethe" (Expand Search), "caro hermawan pethe" (Expand Search), "carso hermawan pethe" (Expand Search), "carlo herman pethe" (Expand Search), "carlo darmawan pethe" (Expand Search), "carlo herwan pethe" (Expand Search)
"care hermann pethe" » "care herman pethe" (Expand Search), "case hermann pethe" (Expand Search), "core hermann pethe" (Expand Search)

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("carl hermann pethe") OR ("care hermann pethe"))) OR ("carlo hermawan pethe"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"carl hermann pethe\") OR (\"care hermann pethe\"))) OR (\"carlo hermawan pethe\"))".
• Removing quotes may allow a broader search: (((( carl hermann pethe ) OR ( care hermann pethe ))) OR ( carlo hermawan pethe )).
• Adding a wildcard symbol may retrieve word variants: (((("carl hermann pethe") OR ("care hermann pethe"))) OR ("carlo hermawan pethe"))*.