Perhaps you should try some spelling variations:
thanh hoi » thanh hoai, thanh hoa, thanh hai
hoc sach » hoc sinh, hoc cac, hoc anh
va thanh » gia thanh, ban thanh, va tinh
lang xa » lang ha, dang xay, lang van
va cam » va cham, va cao, va cai
xuc va » duc va, tuc va, luc va
cua tu » cua tuc, cua su, cua te
cua cu » cua chu, cua cau, cua su

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 _ lang xa hoi. hieu ((va cam) or (va cac)) xuc va thanh hoi ((cua tu) OR (cua cu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc sach _ lang xa hoi. hieu ((va cam) OR (va cac)) xuc va thanh hoi ((cua tu) OR (cua cu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc sach _ lang xa hoi. hieu ((va cam) or (va cac)) xuc va thanh hoi ((cua tu) OR (cua cu))".
• Adding a wildcard symbol may retrieve word variants: hoc sach _ lang xa hoi. hieu ((va cam) or (va cac)) xuc va thanh hoi ((cua tu) OR (cua cu))*.