Perhaps you should try some spelling variations:
hieu hien » bieu hien, dieu hien, chieu chien
ban thanh » ban hanh, ban hang
thanh vi » hanh vi, thanh va, thanh ve
nang mai » nang ma, nang tai, nang cai
lang mai » lang dai, lang hai, lang man
cac xuc » cac nuoc, chat xuc, cac cuoc
su sach » so sach, vu sach
sach tu » sach thu, cach tu, sach ty
vi cua » vai cua, di cua

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