Perhaps you should try some spelling variations:
cua triet » su triet, va triet
thu sach » tu sach, thuat sach, thuoc sach
cua viet » ca viet, hoa viet, cua vat
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
va hanh » van hanh, va thanh, va danh
va cam » va cham, va cac, va cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ty nang xa hoi. hieu va cam xuc ((va hanh) or (va van)) thai ((cua triet) or (cua viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ty nang xa hoi. hieu va cam xuc ((va hanh) OR (va van)) thai ((cua triet) OR (cua viet)).
• Adding a wildcard symbol may retrieve word variants: thu sach ty nang xa hoi. hieu va cam xuc ((va hanh) or (va van)) thai ((cua triet) or (cua viet))*.