Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
tinh voi » trinh voi, tinh doi, binh voi
va tinh » may tinh
cua tre » cuu tre, cua triet, dua tren
su sach » so sach, vu sach
hieu va » lieu va, hieu qua
cao tuc » dao tuc, cao duc, cao suc
va cao » va cac, va co, va dao
tuc va » thuc va, truc va, tuc xa
cua te » cua tu
x hoi » xa hoi, o hoi, x ho

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) or (su sach)) ky nang x hoi. hieu va cao tuc va tinh voi ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (su sach)) ky nang x hoi. hieu va cao tuc va tinh voi ((cua tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: ((thu sach) or (su sach)) ky nang x hoi. hieu va cao tuc va tinh voi ((cua tre) or (cua te))*.