Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
toc sach » hoc sach, doc sach, thuoc sach
thu sach » tu sach, thuat sach, thuoc sach
thanh va » thanh van, hanh va, thanh ha
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
xuc van » duc van, luc van, xuc ban
chu tre » cho tre, chu tri, cuu tre
va chu » va che, va cau, va chi

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 (thu sach)) ky nang xa hoi. ((hieu ve) or (lieu va)) cam xuc van thanh va chu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc sach) OR (thu sach)) ky nang xa hoi. ((hieu ve) OR (lieu va)) cam xuc van thanh va chu tre.
• Adding a wildcard symbol may retrieve word variants: ((toc sach) or (thu sach)) ky nang xa hoi. ((hieu ve) or (lieu va)) cam xuc van thanh va chu tre*.