Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
va thanh » gia thanh, ban thanh, va tinh
ly nang » ky nang, ly hang, ly vang
nang xa » nang x, lang xa, nang ma
vai cua » dai cua, hai cua, lai cua
sach ly » sach y, sach lo, sach ty
vi cua » di cua
va cao » va cac, va co, va dao
va cam » va cham, va cac, va cai

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc sach ly nang xa hoi. hieu ((va cam) OR (va cao)) duc va thanh ((vi cua) or (vai cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach ly nang xa hoi. hieu ((va cam) OR (va cao)) duc va thanh ((vi cua) OR (vai cua)) te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc sach ly nang xa hoi. hieu ((va cam) OR (va cao)) duc va thanh ((vi cua) or (vai cua)) te".
• Adding a wildcard symbol may retrieve word variants: thuoc sach ly nang xa hoi. hieu ((va cam) OR (va cao)) duc va thanh ((vi cua) or (vai cua)) te*.