Perhaps you should try some spelling variations:
hieu hien » bieu hien, dieu hien, chieu chien
ban hanh » ban hang
nang mai » nang tai, lang mai, nang cai
cac cuoc » cac nuoc, ca cuoc, cac quoc
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
nang ma » tang ma, sang ma, nang cao
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 ty ((nang mai) OR (nang ma)) hoi. hieu hien ((cac cuoc) or (cam xuc)) ban hanh vi cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty ((nang mai) OR (nang ma)) hoi. hieu hien ((cac cuoc) OR (cam xuc)) ban hanh vi cua vat.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty ((nang mai) OR (nang ma)) hoi. hieu hien ((cac cuoc) or (cam xuc)) ban hanh vi cua vat".
• Adding a wildcard symbol may retrieve word variants: su sach ty ((nang mai) OR (nang ma)) hoi. hieu hien ((cac cuoc) or (cam xuc)) ban hanh vi cua vat*.