Perhaps you should try some spelling variations:
vu khach » vu khanh, vu khac, vay khach
tham soc » cham soc, tham nuoc, thai son
su sach » so sach
vu sach » vu bach
nang ma » tang ma, sang 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
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, ma hoa
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: ((su sach) or (((vu sach) or (vu khach)))) y nang ma hoi. lieu va tham soc va danh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (((vu sach) OR (vu khach)))) y nang ma hoi. lieu va tham soc va danh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (((vu sach) or (vu khach)))) y nang ma hoi. lieu va tham soc va danh vi cua tre*.