Perhaps you should try some spelling variations:
tham nang » nham nang, tham lang, tham nhung
sach tham » sach nha
toc sach » hoc sach, doc sach, thuoc sach
hanh lai » hanh lam, hanh tai, thanh lap
cua tre » cua te, cua triet, dua tren
cuu tre » cau tren, cau treo
thuc va » thuc vat, thuc dan, thuc day
va cham » va chat, va tham
x hoi » xa hoi, o hoi, x ho

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 tham nang x hoi. lieu va cham ((thuc va) or (tuc xa)) hanh lai ((cua tre) OR (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach tham nang x hoi. lieu va cham ((thuc va) OR (tuc xa)) hanh lai ((cua tre) OR (cuu tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach tham nang x hoi. lieu va cham ((thuc va) or (tuc xa)) hanh lai ((cua tre) OR (cuu tre))".
• Adding a wildcard symbol may retrieve word variants: toc sach tham nang x hoi. lieu va cham ((thuc va) or (tuc xa)) hanh lai ((cua tre) OR (cuu tre))*.