Perhaps you should try some spelling variations:
chong hoc » chung hoc, chong doc, thong hoc
ban thanh » ban hanh, ban hang
cuu cong » cua cong, thu cong, cac cong
anh hoc » sinh hoc, benh hoc, hinh hoc
hoi ban » hoi dan, hoi bai, doi ban
so anh » so sanh, so danh, do anh
hoc xa » hoc ma

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

• Performing a fuzzy search may retrieve terms with similar spellings: so anh hoc tap, nghien cuu cong ((hoc dan) or (hoc pho)) chong hoc xa hoi ban thanh san~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so anh hoc tap, nghien cuu cong ((hoc dan) OR (hoc pho)) chong hoc xa hoi ban thanh san.
• Adding a wildcard symbol may retrieve word variants: so anh hoc tap, nghien cuu cong ((hoc dan) or (hoc pho)) chong hoc xa hoi ban thanh san*.