Perhaps you should try some spelling variations:
centre model » centred model, centered model, centric model
model can » model case, model canvas
one small » some small
yang yan » yang yang, wang yan, yang yao
yang fan » zhang fan, yang dean, yang yang
a centre » au centre, _ centre, a century
can one » than one, can only

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang ((yang yan) or (yang fan)) a centre model can one small ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((yang yan) OR (yang fan)) a centre model can one small ;.
• Adding a wildcard symbol may retrieve word variants: wang ((yang yan) or (yang fan)) a centre model can one small ;*.