Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
hang di » hang doi, hang vi, hang dien
hanh de » hanh ve, hanh kem
hanh di » hanh vi, danh di, xanh di
hieu va » lieu va, hieu qua
cao xuc » cam xuc, cao duc, cao suc
nang xa » nang x, lang xa, nang ma
cua tre » cua te, cuu tre, cua triet
xuc va » duc va, tuc va, luc va
va cao » va cac, va co, va dao
y nang » ky nang, ly nang, v nang

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach y nang xa hoi. hieu va cao xuc va ((((hanh di) OR (hanh de))) or (hang di)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y nang xa hoi. hieu va cao xuc va ((((hanh di) OR (hanh de))) OR (hang di)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach y nang xa hoi. hieu va cao xuc va ((((hanh di) OR (hanh de))) or (hang di)) cua tre".
• Adding a wildcard symbol may retrieve word variants: thu sach y nang xa hoi. hieu va cao xuc va ((((hanh di) OR (hanh de))) or (hang di)) cua tre*.