Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
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
hieu ve » hieu va, hieu van
xuc van » duc van, vuc van, xuc ban
sach ky » sac ky, sach y, sach ty
luc van » luoc van, luu van, duc van
ky dang » ky nang, ky danh
ve cam » ve cham, ve cac, va cam
cua te » cua tu

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 ((xuc van) OR (luc 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 ((xuc van) OR (luc 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 ((xuc van) OR (luc 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 ((xuc van) OR (luc van)) thanh vi ((cua te) or (cau treo))*.