Perhaps you should try some spelling variations:
hanh dai » hanh tai, hanh dao, vanh dai
va hanh » van hanh, va thanh, va danh
tu sach » thu sach, su sach, te sach
xay hoi » xa hoi, tay hoi, cay phoi
ly dong » ly dung, lao dong, huy dong
ly dang » ly hang, le dang, ly dung
va cam » va cham, va cao, va cai
luc va » duc va, tuc va, loc va
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: tu sach ((ly dang) or (ly dong)) xay hoi. lieu ((va cam) OR (va cac)) luc va hanh dai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((ly dang) OR (ly dong)) xay hoi. lieu ((va cam) OR (va cac)) luc va hanh dai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((ly dang) or (ly dong)) xay hoi. lieu ((va cam) OR (va cac)) luc va hanh dai cua te".
• Adding a wildcard symbol may retrieve word variants: tu sach ((ly dang) or (ly dong)) xay hoi. lieu ((va cam) OR (va cac)) luc va hanh dai cua te*.