Perhaps you should try some spelling variations:
hoc sach » hoc sinh, hoc cac, hoc anh
tham soc » cham soc, tham nuoc, thai son
kho tang » cao tang
te sach » toc sach
danh di » danh du, xanh di, danh dien
va danh » va dinh, va dan, va hanh
va tham » van tham, va cham, va thanh
mai hoi » mai khoi, dai hoi, lai hoi
cuu tre » cua tre, cau tren, cau treo
soc va » hoc va, loc va, doc va
y tang » ky tang, 6 tang, 7 tang
di cuu » di cau, di cua, dinh cuu

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 (hoc sach)) ((y tang) or (kho tang)) mai hoi. lieu va tham soc va danh di cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (hoc sach)) ((y tang) OR (kho tang)) mai hoi. lieu va tham soc va danh di cuu tre.
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (hoc sach)) ((y tang) or (kho tang)) mai hoi. lieu va tham soc va danh di cuu tre*.