Perhaps you should try some spelling variations:
hoc sach » hoc sinh, hoc anh
dinh dat » dinh van, dinh lam, binh dan
hoc cac » hoc cao
xang xa » lang xa, mang xa, ang xa
cao suc » cao su, cao duc
suc van » su van, duc van, luc van
va cao » va cac, va co, va dao
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc sach) OR (hoc cac)) ty xang xa hoi. lieu va cao suc van ((dinh dat) or (dinh ket)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc sach) OR (hoc cac)) ty xang xa hoi. lieu va cao suc van ((dinh dat) OR (dinh ket)) cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc sach) OR (hoc cac)) ty xang xa hoi. lieu va cao suc van ((dinh dat) or (dinh ket)) cua te".
• Adding a wildcard symbol may retrieve word variants: ((hoc sach) OR (hoc cac)) ty xang xa hoi. lieu va cao suc van ((dinh dat) or (dinh ket)) cua te*.