Perhaps you should try some spelling variations:
hoc sach » hoc sinh, hoc cac, hoc anh
va thanh » gia thanh, ban thanh, va tinh
thanh va » thanh van, hanh va, thanh ha
lang xa » lang ha, dang xay, lang van
va cham » va chat, va tham
y lang » o lang, _ lang, tay lang
va cam » va cac, va cao, va cai
va cua » va chua, via cua, ca cua
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 y lang xa hoi. hieu ((va cam) OR (va cham)) duc va thanh va cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc sach y lang xa hoi. hieu ((va cam) OR (va cham)) duc va thanh va cua te".
• Adding a wildcard symbol may retrieve word variants: hoc sach y lang xa hoi. hieu ((va cam) OR (va cham)) duc va thanh va cua te*.