Perhaps you should try some spelling variations:
hieu hien » bieu hien, dieu hien, chieu chien
cua viet » ca viet, hoa viet, cua vat
nang lai » nang tai, mang lai, nang cai
hanh de » hanh ve, hanh kem
hanh di » hanh vi, hang di, danh di
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
cac xuc » cac nuoc, chat xuc, cac cuoc
lai hoi » dai hoi, lai hoa, lai roi
ty nang » ky nang, ty xang, ty hang

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