Perhaps you should try some spelling variations:
test housing » cost housing, era housing, tested using
test using » tests using, tested using, testing using
yan yang » yang yang, yao yang, dan yang
yang jui » yang judy, yang di, yang xi
tan kong » tan hong
wang » wing, wan, lang
sar » sara, star, saur

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 yang jui ((test housing) OR (test using)) tan kong sar ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yan yang jui ((test housing) OR (test using)) tan kong sar ;".
• Adding a wildcard symbol may retrieve word variants: wang yan yang jui ((test housing) OR (test using)) tan kong sar ;*.