Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
hanh dai » hanh tai, hanh dao, vanh dai
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
hieu va » lieu va
truc va » thuc va, thuc vat, trung va
tuc va » thuc va, tuc xa, duc va
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: thuoc sach ky nang xa hoi. ((hieu va) or (hieu qua)) chat ((tuc va) OR (truc va)) hanh dai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach ky nang xa hoi. ((hieu va) OR (hieu qua)) chat ((tuc va) OR (truc va)) hanh dai cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc sach ky nang xa hoi. ((hieu va) or (hieu qua)) chat ((tuc va) OR (truc va)) hanh dai cua te*".