Perhaps you should try some spelling variations:
zhang making » change making, zhang ming, ang making
making hong » making long, making song, making among
yang lanka » yang anda
hong yeung » hong seung, ching yeung, kong young
wang yang » wang yan, wang liang, wang yanling
3.1 test » 4.1 test
3.2 best » 3.2 test

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yang lanka ((3.1 test) or (3.2 best)) zhang making hong yeung ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yang lanka ((3.1 test) OR (3.2 best)) zhang making hong yeung ;.
• Adding a wildcard symbol may retrieve word variants: wang yang lanka ((3.1 test) or (3.2 best)) zhang making hong yeung ;*.