Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
toc sach » hoc sach, doc sach, thuoc sach
nang hai » hang hai, nang tai, dang hai
sach ky » sac ky, sach y, sach ty
hai hoi » dai hoi, hai moi, hai hai
qua cam » qua cham, qua cac, qua ca
va hanh » van hanh, va thanh, ban hanh
va danh » va dinh, va dan, dia danh
cua tre » cua te, cuu tre, dua tren

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach ky nang hai hoi. hieu qua cam xuc ((va hanh) or (va danh)) vai ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ky nang hai hoi. hieu qua cam xuc ((va hanh) OR (va danh)) vai ((cua tre) OR (cua triet)).
• Adding a wildcard symbol may retrieve word variants: toc sach ky nang hai hoi. hieu qua cam xuc ((va hanh) or (va danh)) vai ((cua tre) or (cua triet))*.