Perhaps you should try some spelling variations:
danh vai » danh sai, danh va, doanh van
vai cua » dai cua, hai cua, lai cua
va danh » va dinh, va dan, va hanh
cam duc » cam xuc, cao duc, pham duc
hieu ve » hieu va, hieu van
sach ky » sac ky, sach ty, sach kem
ve cam » ve cham, ve cac, va cam
cua cu » cua chu, cua cau, cua su
x hoi » xa hoi, o hoi, x ho
o hoc » co hoc, mo hoc, so hoc

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 ky) or (sach y)) nang ((x hoi) or (o hoc)). hieu ve cam duc va danh vai cua cu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sach y)) nang ((x hoi) OR (o hoc)). hieu ve cam duc va danh vai cua cu.
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) or (sach y)) nang ((x hoi) or (o hoc)). hieu ve cam duc va danh vai cua cu*.