Perhaps you should try some spelling variations:
learning working » leaving working, regarding working, learning during
yang guang » yang yang, yan guan, yang liang
human bad » human brand, human body, human back
bad tasks » based tasks, bad banks, add tasks
20 human » 2 human, 10 human, 2011 human
yang yi » yang di, yang xi, yang jui
g 20 » _ 20

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: ((((yang yi) OR (yang guang))) OR (yang judy))g 20 human bad tasks learning working women ;~.
• Adding a wildcard symbol may retrieve word variants: ((((yang yi) or (yang guang))) or (yang judy))g 20 human bad tasks learning working women ;*.