Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
hieu hien » bieu hien, dieu hien, chieu chien
cua viet » ca viet, hoa viet, cua dieu
nang dai » nang dau, nang tai, lang dai
thanh vi » hanh vi, thanh va, thanh ve
tu sach » thu sach, su sach, te sach
cac xuc » cac nuoc, chat xuc, cac cuoc
sach tu » sach thu, cach tu, sach ty
dai hoi » dai hoc, dai hai, dai moi
tu nang » tru nang, tu nong, tu nano

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 tu nang dai hoi. hieu hien ((cac xuc) or (cam xuc)) ban thanh vi ((cua viet) OR (cua vat))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach tu nang dai hoi. hieu hien ((cac xuc) OR (cam xuc)) ban thanh vi ((cua viet) OR (cua vat)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach tu nang dai hoi. hieu hien ((cac xuc) or (cam xuc)) ban thanh vi ((cua viet) OR (cua vat))".
• Adding a wildcard symbol may retrieve word variants: tu sach tu nang dai hoi. hieu hien ((cac xuc) or (cam xuc)) ban thanh vi ((cua viet) OR (cua vat))*.