Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
hang tai » hang va, dung tai
hanh tai » thanh tai, han tai, hinh tai
cham duc » pham duc, cham soc, pham duy
qua cham » qua hai, qua cac, va cham
hoc cac » hoc cao
y nang » ky nang, ly nang, v nang
cua te » cua tu
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: ((toc sach) or (hoc cac)) y nang x hoi. hieu qua cham duc va ((hanh tai) or (hang tai)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc sach) OR (hoc cac)) y nang x hoi. hieu qua cham duc va ((hanh tai) OR (hang tai)) cua te.
• Adding a wildcard symbol may retrieve word variants: ((toc sach) or (hoc cac)) y nang x hoi. hieu qua cham duc va ((hanh tai) or (hang tai)) cua te*.