Perhaps you should try some spelling variations:
chieu chien » thien chien, hieu hien
chien cuoc » chien luoc, nhiem cuoc
hanh vai » hanh vi, hanh va, hanh tai
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
vai cua » dai cua, hai cua, lai cua
doi va » noi va, dai va
cua tu » cua tuc, cua su, cua cu
x hoi » xa hoi, o hoi, 5 hoi

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 ky nang ((x hoi) or (x ho)). chieu chien cuoc ((doi va) OR (hoi va)) hanh vai cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang ((x hoi) OR (x ho)). chieu chien cuoc ((doi va) OR (hoi va)) hanh vai cua tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang ((x hoi) or (x ho)). chieu chien cuoc ((doi va) OR (hoi va)) hanh vai cua tu".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang ((x hoi) or (x ho)). chieu chien cuoc ((doi va) OR (hoi va)) hanh vai cua tu*.