Perhaps you should try some spelling variations:
nam thuc » nam thuoc, am thuc, nam thu
hang tai » hang va, dung tai
hanh tai » thanh tai, han tai, hinh tai
thuc va » thuc vat, thuc dan, thuc day
te sach » toc sach
sach ky » sac ky, sach y, sach ty
lieu ha » lieu nha, lieu va, lieu ma
nang ma » tang ma, sang ma, nang cao
cuu tre » cua tre, cau tren, cau treo
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky nang ma hoi. ((lieu ha) OR (liem ha)) nam thuc va ((hanh tai) or (hang tai)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang ma hoi. ((lieu ha) OR (liem ha)) nam thuc va ((hanh tai) OR (hang tai)) cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang ma hoi. ((lieu ha) OR (liem ha)) nam thuc va ((hanh tai) or (hang tai)) cuu tre".
• Adding a wildcard symbol may retrieve word variants: te sach ky nang ma hoi. ((lieu ha) OR (liem ha)) nam thuc va ((hanh tai) or (hang tai)) cuu tre*.