Perhaps you should try some spelling variations:
cham duc » pham duc, cham soc, pham duy
ky lang » ky nang, ky tang, tay lang
ky dang » ky nang, ky danh
hieu va » lieu va, hieu qua
va cham » va chat, va tham
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
su sac » su sach, su cac, su xac
ha hoi » hoa hoi, ha noi, xa hoi
vi cua » vai cua, di cua

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 ((ky lang) OR (ky dang)) ha hoi. hieu va cham duc va hanh vi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ((ky lang) OR (ky dang)) ha hoi. hieu va cham duc va hanh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: su sac ((ky lang) OR (ky dang)) ha hoi. hieu va cham duc va hanh vi cua tre*.