Perhaps you should try some spelling variations:
sach thu » sach thue, sach thieu, sach tham
nam thuc » nam thuoc, am thuc, nam thu
thuc van » thuc vat, thuc dan, thuc va
van hanh » van thanh, ban hanh, van anh
sach ty » sach y, sach tu, xach tay
lang xa » lang ha, dang xay, lang van
hanh va » hang va, hanh vi
cuu tre » cua tre, cau tren, cau treo
va nam » van nam, ha nam, va nay
va cuu » va cau, va chu, va huu

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 ty) or (sach thu)) lang xa hoi. lieu va nam thuc van hanh va cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((sach ty) OR (sach thu)) lang xa hoi. lieu va nam thuc van hanh va cuu tre.
• Adding a wildcard symbol may retrieve word variants: toc ((sach ty) or (sach thu)) lang xa hoi. lieu va nam thuc van hanh va cuu tre*.