Perhaps you should try some spelling variations:
cham tuc » nham thuc, pham thuc, tham thuc
hanh vai » hanh vi, hanh tai, hanh van
hanh va » hang va, hanh vi
ve cham » va cham, ve chat, vu cham
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu va, hieu van
su sach » so sach, vu sach
tuc va » thuc va, truc va, tuc xa
su sac » su cac, su xac
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: ((su sac) OR (su sach)) ky nang x hoi. hieu ve cham tuc va ((hanh vai) or (hanh va)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sac) OR (su sach)) ky nang x hoi. hieu ve cham tuc va ((hanh vai) OR (hanh va)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sac) OR (su sach)) ky nang x hoi. hieu ve cham tuc va ((hanh vai) or (hanh va)) cua tre".
• Adding a wildcard symbol may retrieve word variants: ((su sac) OR (su sach)) ky nang x hoi. hieu ve cham tuc va ((hanh vai) or (hanh va)) cua tre*.