Perhaps you should try some spelling variations:
czechia germany » czech german
wang yangming » wang yangming's, wang yanling, wang danning
germany dream » germany deal, germany andreas, germany data
task min » task cil
task ii » task cil
hong ng » hong kong, hong jong, hong hong
hong 7 » hong w, hong a, hong g

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: wang yangming czechia germany dream ((task min) OR (task ii)) ((hong 7) OR (hong ng)) ;~.
• Adding a wildcard symbol may retrieve word variants: wang yangming czechia germany dream ((task min) or (task ii)) ((hong 7) or (hong ng)) ;*.