Perhaps you should try some spelling variations:
nham thuc » nhan thuc, nam thuc, nham thu
qua nham » qua nhat, qua cham, sua nham
lang xa » lang ha, dang xay, lang van
thuc va » thuc vat, thuc dan, thuc day
va danh » va dinh, va dan, va hanh
danh ca » dan ca, doanh cua, danh cho
cua tre » cua te, cuu tre, cua triet
sach o » sach lo, sach y, mach o
ca cua » co cua

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: su ((sach o) or (sac o)) lang xa hoi. hieu qua nham thuc va danh ca cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach o) OR (sac o)) lang xa hoi. hieu qua nham thuc va danh ca cua tre*.