Perhaps you should try some spelling variations:
thuc day » thuc dan, thuc vat
su sach » so sach, vu sach
xang xa » lang xa, mang xa, ang xa
thi van » thi lan, thi hanh, thi nang
van cam » van nam, van lam, van cau
y xang » ty xang
xuc va » duc va, tuc va, luc va
va cua » va chua, via cua, ma cua
ca cua » co cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach y xang xa hoi. thi van cam ((xuc va) or (thuc day)) hanh ((va cua) OR (ca cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y xang xa hoi. thi van cam ((xuc va) OR (thuc day)) hanh ((va cua) OR (ca cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y xang xa hoi. thi van cam ((xuc va) or (thuc day)) hanh ((va cua) OR (ca cua)) tre".
• Adding a wildcard symbol may retrieve word variants: su sach y xang xa hoi. thi van cam ((xuc va) or (thuc day)) hanh ((va cua) OR (ca cua)) tre*.