Perhaps you should try some spelling variations:
zhang ming » zhang xin
ming using » making using, mining using, ming qing
using seng » using self, song seng, using se
p.w best » 3.2 best, how best, 2.4 best
4.2 best » 3.2 best, 4.2 test
2.2 test » 3.2 test, 4.2 test, 2.2 trust
wang » wing, wan, lang
yan » yang, ryan

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yan lanka ((((p.w best) OR (4.2 best))) or (2.2 test)) zhang ming using seng ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yan lanka ((((p.w best) OR (4.2 best))) OR (2.2 test)) zhang ming using seng ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yan lanka ((((p.w best) OR (4.2 best))) or (2.2 test)) zhang ming using seng ;".
• Adding a wildcard symbol may retrieve word variants: wang yan lanka ((((p.w best) OR (4.2 best))) or (2.2 test)) zhang ming using seng ;*.