Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
van thanh » ban thanh, van tuan
thanh vi » hanh vi, thanh va, thanh ve
cau treo » cau theo, cau tren, cau triet
dang xay » dang van, van xay
xay hoi » xa hoi, tay hoi, cay phoi
sach ky » sac ky, sach y, sach ty
xuc van » duc van, luc van, vuc van
ky dang » ky nang, ky danh
ve cam » ve cham, va cam, ve cai
cua te » cua tu
ve cac » va cac, vien cac

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc sach ky dang xay hoi. hieu ((ve cam) OR (ve cac)) xuc van thanh vi ((cua te) or (cau treo))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach ky dang xay hoi. hieu ((ve cam) OR (ve cac)) xuc van thanh vi ((cua te) OR (cau treo)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc sach ky dang xay hoi. hieu ((ve cam) OR (ve cac)) xuc van thanh vi ((cua te) or (cau treo))".
• Adding a wildcard symbol may retrieve word variants: thuoc sach ky dang xay hoi. hieu ((ve cam) OR (ve cac)) xuc van thanh vi ((cua te) or (cau treo))*.