Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
bat hanh » bat khanh, ban hanh, bao hanh
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
cao luc » bao luc, cao duc, cau luc
cao suc » cao su, cao duc
hanh ve » hanh vi, hanh va, hanh kem
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
ve cua » le cua, de cua, te cua

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 y nang xa hoi. hieu va ((cao luc) OR (cao suc)) bat hanh ve cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc sach y nang xa hoi. hieu va ((cao luc) OR (cao suc)) bat hanh ve cua tre".
• Adding a wildcard symbol may retrieve word variants: thuoc sach y nang xa hoi. hieu va ((cao luc) OR (cao suc)) bat hanh ve cua tre*.