Perhaps you should try some spelling variations:
sach thameu » sach thieu
sach tham » sach nha
nam thuc » nam thuoc, am thuc, nam thu
va thanh » gia thanh, ban thanh, va tinh
thanh vi » hanh vi, thanh va, thanh ve
cua viet » ca viet, hoa viet, cua vat
hang xa » hoang xa, hang va, hang ca
hieu ve » hieu va, hieu van
thuc va » thuc vat, thuc dan, thuc day
ve nam » he nam, va nam, le nam
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach tham) or (sach thameu)) hang xa hoi. hieu ve nam thuc va thanh vi cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach tham) OR (sach thameu)) hang xa hoi. hieu ve nam thuc va thanh vi cua viet.
• Adding a wildcard symbol may retrieve word variants: tu ((sach tham) or (sach thameu)) hang xa hoi. hieu ve nam thuc va thanh vi cua viet*.