Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
xang xa » lang xa, mang xa, ang xa
hieu va » lieu va, hieu qua
danh vi » hanh vi, danh di, danh va
dinh vi » dinh ve, dinh viet, dinh tri
co cua » con cua, cong cua, cuoi 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: tu sach ty xang xa hoi. hieu va ((ca cua) OR (co cua)) ban ((danh vi) or (dinh vi)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty xang xa hoi. hieu va ((ca cua) OR (co cua)) ban ((danh vi) OR (dinh vi)) cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty xang xa hoi. hieu va ((ca cua) OR (co cua)) ban ((danh vi) or (dinh vi)) cua te".
• Adding a wildcard symbol may retrieve word variants: tu sach ty xang xa hoi. hieu va ((ca cua) OR (co cua)) ban ((danh vi) or (dinh vi)) cua te*.