Perhaps you should try some spelling variations:
yanling yang » yang yang, ying yang
test housing » cost housing, era housing, tested using
yang davis » wang david, yang dali
test using » tests using, tested using, testing using
long star » lone star, long story
long span » long han
wang » wing, wan, lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yanling yang davis ((test housing) or (test using)) bank ((long star) OR (long span)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yanling yang davis ((test housing) OR (test using)) bank ((long star) OR (long span)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yanling yang davis ((test housing) or (test using)) bank ((long star) OR (long span)) ;*".