Perhaps you should try some spelling variations:
hieu hien » bieu hien, dieu hien, chieu chien
hien cam » hien cac, hien cau, hien giam
ban hanh » ban hang
cua viet » hoa viet, cua dieu, va viet
tu sach » thu sach, su sach, te sach
nang ma » tang ma, sang ma, nang cao
xuc ban » duc ban, cuc ban, quoc ban
ca viet » va viet, co viet, hoa viet
y nang » ky nang, ly nang, v nang
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: tu sach y nang ma hoi. hieu hien cam xuc ban hanh vi ((((cua viet) or (cua vat))) or (ca viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang ma hoi. hieu hien cam xuc ban hanh vi ((((cua viet) OR (cua vat))) OR (ca viet)).
• Adding a wildcard symbol may retrieve word variants: tu sach y nang ma hoi. hieu hien cam xuc ban hanh vi ((((cua viet) or (cua vat))) or (ca viet))*.