Perhaps you should try some spelling variations:
cham truc » cau truc, nham thuc, pham thuc
tu sach » thu sach, su sach, te sach
co sach » bo sach, cuon sach, hoc sach
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
truc va » thuc va, thuc vat, trung va
va hanh » van hanh, va thanh, va danh
ca viet » va viet, co viet, hoa viet

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (co sach)) ky nang xa hoi. hieu ve cham truc va hanh vi ((cua vat) or (ca viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (co sach)) ky nang xa hoi. hieu ve cham truc va hanh vi ((cua vat) OR (ca viet)).
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (co sach)) ky nang xa hoi. hieu ve cham truc va hanh vi ((cua vat) or (ca viet))*.