Perhaps you should try some spelling variations:
thai cua » than cua, tai cuc, tri cua
sach tru » sach truc, sach thu, sach tu
can thuc » dan thuc, van thuc, cay thuc
thuc day » thuc dan, thuc vat
day hanh » day nhanh, day thanh, dao hanh
te sach » toc sach
nang xa » lang xa, nang ma, mang xa
hai cua » dai cua, hoi cua, lai cua
hieu va » lieu va, hieu qua
va can » va chan, va cac, va cao

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 tru ((nang xa) or (nang x)) hoi. hieu va can thuc day hanh ((hai cua) OR (thai cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach tru ((nang xa) OR (nang x)) hoi. hieu va can thuc day hanh ((hai cua) OR (thai cua)) te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach tru ((nang xa) or (nang x)) hoi. hieu va can thuc day hanh ((hai cua) OR (thai cua)) te".
• Adding a wildcard symbol may retrieve word variants: te sach tru ((nang xa) or (nang x)) hoi. hieu va can thuc day hanh ((hai cua) OR (thai cua)) te*.