Perhaps you should try some spelling variations:
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
danh va » doanh va, hanh va, anh va
thuc va » thuc dan, thuc day
va cham » va chat, va tham
cua tre » cua te, cuu tre, cua triet
ve cam » ve cham, ve cac, va cam
xang x » nang x
va cua » va chua, via cua, ca cua
x hoi » xa hoi, o hoi, x ho

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 ty xang x hoi. hieu ((ve cam) or (va cham)) ((thuc va) OR (thuc vat)) danh va cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty xang x hoi. hieu ((ve cam) OR (va cham)) ((thuc va) OR (thuc vat)) danh va cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty xang x hoi. hieu ((ve cam) or (va cham)) ((thuc va) OR (thuc vat)) danh va cua tre*".