Perhaps you should try some spelling variations:
nguoi sach » nguoi san, nuoc sach
toc sach » hoc sach, doc sach, thuoc sach
thien va » thien van, tien va, thien tai
danh dau » lanh dao, hang dau, danh tu
nang xa » nang x, lang xa, nang ma
va cham » va chat, va tham
dau cua » dai cua, day cua, cau cua
cua tre » cua te, cuu tre, cua triet
tuc va » thuc va, truc va, duc va

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