Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
dau tieng » dau tien, cau tieng, day tieng
dang xay » dang van, van xay
tham tuc » tham thuc, thai tuc, nham thuc
cau tren » cu tren, dau tren, ca tren
lang xa » lang ha, lang van
va danh » va dinh, va dan, va hanh
danh va » doanh va, hanh va, anh va
va tham » van tham, va cham, va thanh
tuc va » thuc va, truc va, tuc xa

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 y ((lang xa) or (dang xay)) hoi. lieu va tham tuc va danh va ((cau tren) or (dau tieng))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach y ((lang xa) OR (dang xay)) hoi. lieu va tham tuc va danh va ((cau tren) OR (dau tieng)).
• Adding a wildcard symbol may retrieve word variants: thuoc sach y ((lang xa) or (dang xay)) hoi. lieu va tham tuc va danh va ((cau tren) or (dau tieng))*.