Perhaps you should try some spelling variations:
cua triet » su triet, va triet
cua viet » ca viet, hoa viet, cua vat
thu sach » thuat sach, thuoc sach, thu hoach
nang mai » nang ma, nang tai, lang mai
cao xuc » cam xuc, cao duc, cao suc
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
tu sach » su sach, te sach, tu cach
hieu va » lieu va, hieu qua
mai hoi » mai khoi, dai hoi, lai hoi
xuc va » duc va, tuc va, luc va
va cao » va cac, va co, va dao

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 (thu sach)) ky nang mai hoi. hieu va cao xuc va danh vi ((cua triet) OR (cua viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) ky nang mai hoi. hieu va cao xuc va danh vi ((cua triet) OR (cua viet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (thu sach)) ky nang mai hoi. hieu va cao xuc va danh vi ((cua triet) OR (cua viet))".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thu sach)) ky nang mai hoi. hieu va cao xuc va danh vi ((cua triet) OR (cua viet))*.