Perhaps you should try some spelling variations:
hoc sach » hoc sinh, hoc cac, hoc anh
va thanh » gia thanh, ban thanh, va tinh
dang xay » dang van, van xay
cham tuc » nham thuc, pham thuc, tham thuc
tai cua » thai cua, tai cuc, tri cua
va hanh » van hanh, va danh, ban hanh
sach ky » sac ky, sach y, sach ty
va cham » va chat, va tham
xay hoi » xa hoi, tay hoi, cay phoi
ky dang » ky nang, ky danh
va dan » ca dan, va dao, va dau
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: hoc sach ky dang xay hoi. lieu va cham tuc ((((va hanh) OR (va thanh))) or (va dan)) tai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc sach ky dang xay hoi. lieu va cham tuc ((((va hanh) OR (va thanh))) OR (va dan)) tai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc sach ky dang xay hoi. lieu va cham tuc ((((va hanh) OR (va thanh))) or (va dan)) tai cua te".
• Adding a wildcard symbol may retrieve word variants: hoc sach ky dang xay hoi. lieu va cham tuc ((((va hanh) OR (va thanh))) or (va dan)) tai cua te*.