Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
danh di » danh du, xanh di, danh dien
va tham » van tham, va cham, va thanh
cua tre » cua te, cuu tre, cua triet
sang ma » tang ma, nang ma, sang tao
ma hoi » mai hoi, xa hoi, ma hoa
soc va » hoc va, doc va, goc va
loc va » hoc va, luc va
y sang » _ sang, duy sang
di cua » dai cua, doi cua, de cua

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) or (toc sach)) y sang ma hoi. lieu va tham ((soc va) OR (loc va)) danh di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (toc sach)) y sang ma hoi. lieu va tham ((soc va) OR (loc va)) danh di cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) or (toc sach)) y sang ma hoi. lieu va tham ((soc va) OR (loc va)) danh di cua tre".
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (toc sach)) y sang ma hoi. lieu va tham ((soc va) OR (loc va)) danh di cua tre*.