Perhaps you should try some spelling variations:
sach thue » sach thu, sach thieu, sach tham
xach tay » canh tay
hanh dai » hanh tai, hanh dao, vanh dai
va hanh » van hanh, va thanh, va danh
va chat » van chat, va phat, cao chat
va cham » va tham
soc va » hoc va, loc va, doc va
cua te » cua tu
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: te ((xach tay) or (sach thue)) nang x hoi. hieu ((va cham) OR (va chat)) soc va hanh dai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((xach tay) OR (sach thue)) nang x hoi. hieu ((va cham) OR (va chat)) soc va hanh dai cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((xach tay) or (sach thue)) nang x hoi. hieu ((va cham) OR (va chat)) soc va hanh dai cua te*".