Perhaps you should try some spelling variations:
nam thuc » nam thuoc, am thuc, nam thu
te sach » toc sach
va hang » van hang, va nang, va lang
thuc va » thuc vat, thuc dan, thuc day
thi van » thi lan, thi hanh, thi nang
ty hang » ly hang, ty xang, thi hang
ty lang » tay lang, ty xang, tu lang
de cua » le cua, dieu cua
te cua » tue cua, le cua

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 ((ty lang) or (ty hang)) xa hoi. thi van nam thuc va hang ((de cua) or (te cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ty lang) OR (ty hang)) xa hoi. thi van nam thuc va hang ((de cua) OR (te cua)) te.
• Adding a wildcard symbol may retrieve word variants: te sach ((ty lang) or (ty hang)) xa hoi. thi van nam thuc va hang ((de cua) or (te cua)) te*.