Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
phuc va » phuc vu, chuc va, thuc vat
vai cua » dai cua, hai cua, lai cua
thuc va » thuc vat, thuc dan, thuc day
tu sach » thu sach, su sach, te sach
sach ly » sach y, sach lo, sach ty
van dau » van dao, phan dau
van hau » van ha, van hai, van hac
nang xa » nang x, lang xa, nang ma
ly nang » ky nang, ly hang, ly vang
cua tre » cua te, cuu tre, cua triet

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 ly nang xa hoi. hieu ((van hau) OR (van dau)) ((phuc va) or (thuc va)) hanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ly nang xa hoi. hieu ((van hau) OR (van dau)) ((phuc va) OR (thuc va)) hanh vai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ly nang xa hoi. hieu ((van hau) OR (van dau)) ((phuc va) or (thuc va)) hanh vai cua tre*".