Perhaps you should try some spelling variations:
tham soc » cham soc, tham nuoc, thai son
te sach » toc sach
sang ma » tang ma, sang tao, sang tai
nang ma » tang ma, nang cao
va tham » van tham, va cham, va thanh
va danh » va dinh, va dan, va hanh
danh vi » hanh vi, dinh vi, danh di
cua tre » cua te, cuu tre, cua triet
soc va » hoc va, loc va, doc va
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: te sach y ((sang ma) or (((nang ma) OR (mang may)))) hoi. lieu va tham soc va danh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y ((sang ma) OR (((nang ma) OR (mang may)))) hoi. lieu va tham soc va danh vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y ((sang ma) or (((nang ma) OR (mang may)))) hoi. lieu va tham soc va danh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach y ((sang ma) or (((nang ma) OR (mang may)))) hoi. lieu va tham soc va danh vi cua tre*.