Perhaps you should try some spelling variations:
nam thuc » nam thuoc, am thuc, nam thu
te sach » toc sach
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
thuc va » thuc vat, thuc dan, thuc day
va hanh » van hanh, va thanh, va danh
y lang » o lang, _ lang, tay lang
va nam » van nam, ha nam, va nay
vi cua » vai cua
di cua » dai cua, doi cua, de 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 y lang xa hoi. hieu va nam thuc va hanh ((vi cua) or (di cua)) tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y lang xa hoi. hieu va nam thuc va hanh ((vi cua) OR (di cua)) tu.
• Adding a wildcard symbol may retrieve word variants: te sach y lang xa hoi. hieu va nam thuc va hanh ((vi cua) or (di cua)) tu*.