Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
hanh de » hanh ve, hanh kem
y nang » ky nang, ly nang, v nang
va cau » van cau, va cac, va dau
tuc va » thuc va, truc va, tuc xa
luc va » loc va
de cua » le cua, te cua, dieu cua

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: tu sach y nang xa hoi. lieu va cau ((((tuc va) OR (duc va))) OR (luc va)) hanh de cua vat~.
• Adding a wildcard symbol may retrieve word variants: tu sach y nang xa hoi. lieu va cau ((((tuc va) or (duc va))) or (luc va)) hanh de cua vat*.