Perhaps you should try some spelling variations:
dan thanh » dang thanh, danh thanh, ban thanh
thanh doi » thanh loi, thanh moi, thanh do
nam thuc » nam thuoc, am thuc, nam thu
thuc dan » thuc hanh, hoc dan, thuc vat
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
doi cua » dai cua, hoi cua
cua tre » cua te, cuu tre, cua triet
sach o » sach lo, sach y, mach o
ve nam » he nam, va nam, le nam

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 o) OR (sac o)) lang xa hoi. hieu ve nam thuc dan thanh doi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc ((sach o) OR (sac o)) lang xa hoi. hieu ve nam thuc dan thanh doi cua tre*".