Perhaps you should try some spelling variations:
hieu hien » bieu hien, dieu hien, chieu chien
nang mai » nang ma, nang tai, nang cai
hanh vai » hanh vi, hanh va, hanh tai
lang mai » lang dai, lang hai, lang man
va hanh » van hanh, va thanh, va danh
cac xuc » cac nuoc, chat xuc, cac cuoc
tu sach » thu sach, su sach, te sach
ca viet » va viet, co viet, hoa viet
vai ca » vai cac, vai cua, bai ca

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 y ((nang mai) or (lang mai)) hoi. hieu hien ((cac xuc) or (cam xuc)) va hanh vai ca viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y ((nang mai) OR (lang mai)) hoi. hieu hien ((cac xuc) OR (cam xuc)) va hanh vai ca viet.
• Adding a wildcard symbol may retrieve word variants: tu sach y ((nang mai) or (lang mai)) hoi. hieu hien ((cac xuc) or (cam xuc)) va hanh vai ca viet*.