Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
van chat » cao chat
so sach » so sanh, bo sach, co sach
xang xa » lang xa, mang xa, ang xa
danh di » danh du, xanh di, danh dien
sach ty » sach y, sach tu, sach thu
thuc va » thuc vat, thuc dan, thuc day
danh vi » hanh vi, dinh vi, danh va
tuc va » truc va, tuc xa, duc va
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ty xang xa hoi. hieu van chat ((tuc va) OR (thuc va)) ((danh vi) or (danh di)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ty xang xa hoi. hieu van chat ((tuc va) OR (thuc va)) ((danh vi) OR (danh di)) cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ty xang xa hoi. hieu van chat ((tuc va) OR (thuc va)) ((danh vi) or (danh di)) cua te*".