Perhaps you should try some spelling variations:
nam thuc » nam thuoc, am thuc, nam thu
dung sai » dung tai, dung va, dung dat
danh sai » danh bat, danh dau, hanh san
sach ky » sac ky, sach ty, sach kem
thuc xa » thuc xay, tuc xa, thuc va
hieu he » hieu ve, hiem he, hieu le
tang xa » trang xa, tang ma, lang xa
cua tre » cua te, cuu tre, cua triet
he nam » ha nam, nghe nam

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 ky) OR (sach y)) tang xa hoi. hieu he nam thuc xa ((danh sai) or (dung sai)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ky) OR (sach y)) tang xa hoi. hieu he nam thuc xa ((danh sai) OR (dung sai)) cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach ky) OR (sach y)) tang xa hoi. hieu he nam thuc xa ((danh sai) or (dung sai)) cua tre*".