Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
va trien » va truyen, va thiet, va tuyen
sach ky » sac ky, sach y, sach ty
va danh » va dinh, va dan, dia danh
su sach » so sach, vu sach
cac xuc » cam xuc, cac nuoc, chat xuc
qua cac » cua cac
nang ma » tang ma, sang ma, nang cao
va hanh » van hanh, va thanh, ban hanh
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ky nang ma hoi. hieu qua cac xuc ((va hanh) OR (va danh)) vi ((cua triet) or (va trien))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang ma hoi. hieu qua cac xuc ((va hanh) OR (va danh)) vi ((cua triet) OR (va trien)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang ma hoi. hieu qua cac xuc ((va hanh) OR (va danh)) vi ((cua triet) or (va trien))".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang ma hoi. hieu qua cac xuc ((va hanh) OR (va danh)) vi ((cua triet) or (va trien))*.