Perhaps you should try some spelling variations:
nam thuc » nam thuoc, am thuc, nam thu
danh tai » doanh tai, dinh tai, hanh tai
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
thuc va » thuc vat, thuc dan, thuc day
va danh » va dinh, va dan, va hanh
cuc tre » duc tre, cuu tre, cuc thue
cua tre » cua te, cuu tre, cua triet
sach v » sach va, sach y, sach 2
v nang » va nang, vu nang, van nang
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: tu sach v nang xa hoi. hieu ve nam thuc va danh tai ((cuc tre) or (cua tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach v nang xa hoi. hieu ve nam thuc va danh tai ((cuc tre) OR (cua tre)).
• Adding a wildcard symbol may retrieve word variants: tu sach v nang xa hoi. hieu ve nam thuc va danh tai ((cuc tre) or (cua tre))*.