Perhaps you should try some spelling variations:
sach tham » sach nha
thuc day » thuc dan, thuc vat
day hanh » day nhanh, day thanh, dao hanh
lai cua » dai cua, hai cua, lai chau
vai cua » dai cua, hai cua, bai cua
co thuc » do thuc, co thua, mo thuc
sach tu » sach thu, cach tu, sach ty
hieu va » lieu va, hieu qua
nong xa » song xa, dong xa, nong va
va co » vo co

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 tu) or (sach tham)) nong xa hoi. hieu va co thuc day hanh ((vai cua) or (lai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach tu) OR (sach tham)) nong xa hoi. hieu va co thuc day hanh ((vai cua) OR (lai cua)) tre.
• Adding a wildcard symbol may retrieve word variants: te ((sach tu) or (sach tham)) nong xa hoi. hieu va co thuc day hanh ((vai cua) or (lai cua)) tre*.