Perhaps you should try some spelling variations:
chieu chien » thien chien, hieu hien
chien bich » chien dich, phien dich
bich ngoc » bich nga, dinh ngoc
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
ngoc va » nuoc va, ngoc ha, goc va
bo sach » co sach, hoc sach
ty nang » ky nang, ty hang, ly nang
cua tu » cua tuc, cua cu, cua te
cua su » qua su
x hoi » xa hoi, o hoi, x ho

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: bo sach ((ty nang) or (ty xang)) x hoi. chieu chien bich ngoc va danh vi ((cua tu) OR (cua su))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: bo sach ((ty nang) OR (ty xang)) x hoi. chieu chien bich ngoc va danh vi ((cua tu) OR (cua su))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "bo sach ((ty nang) or (ty xang)) x hoi. chieu chien bich ngoc va danh vi ((cua tu) OR (cua su))*".