Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
hanh dai » hanh tai, hanh dao, vanh dai
va hanh » van hanh, va thanh, va danh
ve bao » te bao, va bao
suc va » duc va, tuc va, luc va
ve cao » va cao, ve cac, ve co
y nang » ky nang, ly nang, may nang
v nang » va nang, vu nang, van nang
cua te » cua tu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ((y nang) OR (v nang)) xa hoi. hieu ((ve cao) OR (ve bao)) suc va hanh dai cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ((y nang) or (v nang)) xa hoi. hieu ((ve cao) OR (ve bao)) suc va hanh dai cua te~".
• Adding a wildcard symbol may retrieve word variants: thu sach ((y nang) or (v nang)) xa hoi. hieu ((ve cao) OR (ve bao)) suc va hanh dai cua te*.