Perhaps you should try some spelling variations:
hanh sinh » hanh tinh, hanh dinh, hinh sinh
thu sach » tu sach, thuat sach, thuoc sach
sinh cua » manh cua, dinh cuu, sinh va
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
xuc van » duc van, luc van, vuc van
cua tre » cua te, cuu tre, cua triet
va cam » va cham, va cac, va cao

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 ky nang xa hoi. hieu va cam ((((xuc van) or (thuc vat))) or (duc tan)) hanh sinh cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky nang xa hoi. hieu va cam ((((xuc van) OR (thuc vat))) OR (duc tan)) hanh sinh cua tre.
• Adding a wildcard symbol may retrieve word variants: thu sach ky nang xa hoi. hieu va cam ((((xuc van) or (thuc vat))) or (duc tan)) hanh sinh cua tre*.