Perhaps you should try some spelling variations:
toc sach » doc sach, thuoc sach, nuoc sach
hoc sach » hoc sinh, hoc cac, hoc anh
va thanh » gia thanh, ban thanh, va tinh
nang ma » tang ma, sang ma, nang cao
va cham » va chat, va tham
hai cua » thai cua, dai cua, lai cua
hoi cua » hoi chuc
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, ma hoa
soc va » hoc va, loc va, doc va

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((toc sach) OR (hoc sach)) y nang ma hoi. lieu va cham soc va thanh ((hai cua) or (hoi cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc sach) OR (hoc sach)) y nang ma hoi. lieu va cham soc va thanh ((hai cua) OR (hoi cua)) triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((toc sach) OR (hoc sach)) y nang ma hoi. lieu va cham soc va thanh ((hai cua) or (hoi cua)) triet".
• Adding a wildcard symbol may retrieve word variants: ((toc sach) OR (hoc sach)) y nang ma hoi. lieu va cham soc va thanh ((hai cua) or (hoi cua)) triet*.