Perhaps you should try some spelling variations:
ban hanh » ban hang
hanh hoi » hanh thoi, hanh noi, hanh hoa
cua viet » ca viet, hoa viet, cua vat
sach ty » sach y, sach tu, sach thu
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
xuc ban » duc ban, cuc ban, quoc ban
hoi cua » hoi chuc
sac ky » cac ky, sai ky

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 ty) or (sac ky)) nang xa hoi. ((hieu ve) or (hieu qua)) cam xuc ban hanh hoi cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ty) OR (sac ky)) nang xa hoi. ((hieu ve) OR (hieu qua)) cam xuc ban hanh hoi cua viet.
• Adding a wildcard symbol may retrieve word variants: tu ((sach ty) or (sac ky)) nang xa hoi. ((hieu ve) or (hieu qua)) cam xuc ban hanh hoi cua viet*.