Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
sach tay » xach tay, sach hay, sach nay
cau tren » cu tren, dau tren, ca tren
tay lang » tai lang, tay tang, tay quang
lang xa » lang ha, dang xay, lang van
van dam » van nam, van dao, van dau
thuc va » thuc vat, thuc dan, thuc day
cua tre » cua te, cuu tre, cua triet
van am » van nam, van lam, van ai
va dan » ca dan, va dao, va dau
dan va » doan va, dan ca, ban va

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 tay lang xa hoi. thien ((van am) OR (van dam)) thuc va dan va ((cua tre) or (cau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach tay lang xa hoi. thien ((van am) OR (van dam)) thuc va dan va ((cua tre) OR (cau tren)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc sach tay lang xa hoi. thien ((van am) OR (van dam)) thuc va dan va ((cua tre) or (cau tren))".
• Adding a wildcard symbol may retrieve word variants: thuoc sach tay lang xa hoi. thien ((van am) OR (van dam)) thuc va dan va ((cua tre) or (cau tren))*.