Perhaps you should try some spelling variations:
things chapter » things happen, findings chapter, thinking chapter
liang ying » liang liying, huang ying, zhang ying
lang ying » huang ying, zhang ying, fan ying
thin lens » thin line, thin end
yang y » yang yi, yang _, yang 8
y las » y la, y los
sin » sign, sind, skin

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: ((lang ying) OR (liang ying)) yang y las ((thin lens) OR (things chapter)) dong sin ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((lang ying) OR (liang ying)) yang y las ((thin lens) or (things chapter)) dong sin ;~".
• Adding a wildcard symbol may retrieve word variants: ((lang ying) OR (liang ying)) yang y las ((thin lens) or (things chapter)) dong sin ;*.