Perhaps you should try some spelling variations:
nuoc sach » nguoi sach, hoc sach, cuoc cach
cac chuc » cac chu, cac chung, cach thuc
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
va hanh » van hanh, va thanh, ban hanh
va danh » va dinh, va dan, dia danh
doi cua » hoi cua
ve cac » va cac, vien cac
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: nuoc sach ky nang x hoi. hieu ve cac chuc ((va hanh) or (va danh)) ((doi cua) OR (dai cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: nuoc sach ky nang x hoi. hieu ve cac chuc ((va hanh) OR (va danh)) ((doi cua) OR (dai cua)) te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "nuoc sach ky nang x hoi. hieu ve cac chuc ((va hanh) or (va danh)) ((doi cua) OR (dai cua)) te".
• Adding a wildcard symbol may retrieve word variants: nuoc sach ky nang x hoi. hieu ve cac chuc ((va hanh) or (va danh)) ((doi cua) OR (dai cua)) te*.