Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
van cham » van chat, van tham, va cham
danh sai » dung sai, danh bat, danh dau
hoc anh » hoc nganh, hoc nhanh, ngoc anh
nang xa » nang x, lang xa, nang ma
va danh » va dinh, va dan, va hanh
sai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet
tuc va » thuc va, truc va, tuc xa

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 anh)) ky nang xa hoi. hieu ((van cham) or (anh tuan)) tuc va danh sai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc sach) OR (hoc anh)) ky nang xa hoi. hieu ((van cham) OR (anh tuan)) tuc va danh sai cua tre.
• Adding a wildcard symbol may retrieve word variants: ((toc sach) or (hoc anh)) ky nang xa hoi. hieu ((van cham) or (anh tuan)) tuc va danh sai cua tre*.