Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
va thanh » gia thanh, ban thanh, va tinh
thanh vi » hanh vi, thanh va, thanh ve
ty nang » ty xang, ty hang, ly nang
va cham » va chat, va tham
va cam » va cac, va cao, va cai
vi cua » vai cua, di cua
cua te » cua tu

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