Perhaps you should try some spelling variations:
yang liang » wang liang, yan liang, yang yang
gas data » gis data, hbs data
data goh » data geht, data good, data gap
goh chen » goh chor
yang yue » wang yue, yang yun, yang yi
yang jui » yang xi, yang yi
one gas » cone gas, one goal, one case

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: one gas data goh chen ((((yang di) OR (yang liang))) OR (yang judy)) ((yang yue) OR (yang jui)) ;~.
• Adding a wildcard symbol may retrieve word variants: one gas data goh chen ((((yang di) or (yang liang))) or (yang judy)) ((yang yue) or (yang jui)) ;*.