Perhaps you should try some spelling variations:
peraturan sungai » pengaturan sungai, perairan sungai, peraturan lengkap
mari belajar » hasil belajar
belajar pagi » belajar pai, belajar bagi, belajar dari
sungai hutan » tengah hutan
hutan usaha » piutang usaha
usaha dini » usia dini, usaha tani, usaha dan

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: (( mari belajar pagi ((dan dunia) OR (di dunia)) 4 ) OR ( dan peraturan sungai hutan usaha dini ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( mari belajar pagi ((dan dunia) OR (di dunia)) 4 ) or ( dan peraturan sungai hutan usaha dini ))~".
• Adding a wildcard symbol may retrieve word variants: (( mari belajar pagi ((dan dunia) OR (di dunia)) 4 ) or ( dan peraturan sungai hutan usaha dini ))*.