Perhaps you should try some spelling variations:
ban hanh » ban hang
cua viet » ca viet, hoa viet, cua vat
su sach » so sach, vu sach
tang xa » trang xa, tang ma, lang xa
hieu ve » hieu va, hieu van
xuc ban » duc ban, cuc ban, quoc ban
y tang » ky tang, 6 tang, 7 tang
ve cam » ve cham, ve cac, va cam
cua te » cua tu

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 y tang xa hoi. hieu ve cam xuc ban hanh vi ((cua viet) OR (cua te))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y tang xa hoi. hieu ve cam xuc ban hanh vi ((cua viet) OR (cua te))".
• Adding a wildcard symbol may retrieve word variants: su sach y tang xa hoi. hieu ve cam xuc ban hanh vi ((cua viet) OR (cua te))*.