Perhaps you should try some spelling variations:
typing based » timing based, thing based, tuning based
ping based » pig based, thing based, spin based
lang yang » wang yang, yang yang, lang lang
yang wang » yang yang, yan wang, yang guang
wang hui » wang hua, wang zhi, wang wei
5g based » 5g base, dge based, ecg based
aid hong » aid how, aid homi, aid non
hong ghi » zhong zhi, hong g, hong hai

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: lang yang wang hui ((((ping based) OR (typing based))) OR (5g based)) aid hong ghi ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "lang yang wang hui ((((ping based) OR (typing based))) or (5g based)) aid hong ghi ;~".
• Adding a wildcard symbol may retrieve word variants: lang yang wang hui ((((ping based) OR (typing based))) or (5g based)) aid hong ghi ;*.