Perhaps you should try some spelling variations:
cham luc » cham soc, nhan luc, cham cuu
sach ky » sac ky, sach y, sach ty
hai cua » thai cua, dai cua, hoi cua
va tinh » may tinh
va dinh » van dinh, va kinh, vu dinh
te sach » toc sach
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
cua tre » cua te, cuu tre, cua triet
ma hoi » mai hoi, ma hoa, me hoi

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky nang ((ma hoi) OR (xa hoi)). hieu ve cham luc ((va dinh) or (va tinh)) hai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang ((ma hoi) OR (xa hoi)). hieu ve cham luc ((va dinh) OR (va tinh)) hai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang ((ma hoi) OR (xa hoi)). hieu ve cham luc ((va dinh) or (va tinh)) hai cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach ky nang ((ma hoi) OR (xa hoi)). hieu ve cham luc ((va dinh) or (va tinh)) hai cua tre*.