Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu va, hieu van
dinh ve » dinh ket, dinh van
ca viet » va viet, co viet, hoa viet
ve cam » ve cham, ve cac, va cam
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: su sach ky nang ma hoa. hieu ve cam xuc va ((hanh vi) or (dinh ve)) ((cua triet) or (ca viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang ma hoa. hieu ve cam xuc va ((hanh vi) OR (dinh ve)) ((cua triet) OR (ca viet)).
• Adding a wildcard symbol may retrieve word variants: su sach ky nang ma hoa. hieu ve cam xuc va ((hanh vi) or (dinh ve)) ((cua triet) or (ca viet))*.