Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
cua triet » cua viet, su triet, va triet
hieu van » hieu va, thien van, lieu va
sach ky » sac ky, sach y, sach ty
van cac » van hac, van cau, van bac
cac xuc » cam xuc, cac nuoc, chat xuc
va hanh » van hanh, va thanh, va danh
ca viet » va viet, co viet, hoa viet
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach ky nang x ho. hieu van cac xuc va hanh vi ((cua triet) or (ca viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ky nang x ho. hieu van cac xuc va hanh vi ((cua triet) OR (ca viet)).
• Adding a wildcard symbol may retrieve word variants: thuat sach ky nang x ho. hieu van cac xuc va hanh vi ((cua triet) or (ca viet))*.