Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
toc sach » doc sach, thuoc sach, nuoc sach
vien cac » vien bach, vien dai, vien da
thanh va » thanh van, hanh va, thanh ha
hoc sach » hoc sinh, hoc cac, hoc anh
sang cho » danh cho, dung cho, sang tao
xuc van » duc van, luc van, vuc van
cua cau » cua cac, cua chu, cua cay
cho hoc » co hoc, khoa hoc
ty sang » ty xang, ty hang, duy sang
va cua » va chua, via cua, ca cua
ve cac » va cac

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 sach)) ty sang cho hoc. hieu ((ve cac) or (vien cac)) xuc van thanh va cua cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc sach) OR (hoc sach)) ty sang cho hoc. hieu ((ve cac) OR (vien cac)) xuc van thanh va cua cau*.