Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
hanh vai » hanh vi, hanh va, hanh tai
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
va hanh » van hanh, va thanh, va danh
vai cua » dai cua, hai cua, lai cua
va cao » va cac, va dao, va bao
luc va » duc va, tuc va, loc va
cua te » cua tu
va co » vo co

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach ky nang xa hoi. hieu ((va cao) OR (va co)) luc va hanh vai cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach ky nang xa hoi. hieu ((va cao) OR (va co)) luc va hanh vai cua te".
• Adding a wildcard symbol may retrieve word variants: thuat sach ky nang xa hoi. hieu ((va cao) OR (va co)) luc va hanh vai cua te*.