Perhaps you should try some spelling variations:
sach tham » sach nha
tham nang » nham nang, tham lang, tham nhung
hieu viec » nhieu viec, hieu ve, sieu viet
viec cac » vien cac, viec cua, viec lam
thai cua » than cua, tri cua, hoi cua
tu sach » thu sach, su sach, te sach
cac duc » cac du, cao duc, cac dac
va danh » va dinh, va dan, va hanh

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 tham nang x ho. hieu viec cac duc va danh ((((thai cua) or (tai cuc))) or (dai cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach tham nang x ho. hieu viec cac duc va danh ((((thai cua) OR (tai cuc))) OR (dai cua)) triet.
• Adding a wildcard symbol may retrieve word variants: tu sach tham nang x ho. hieu viec cac duc va danh ((((thai cua) or (tai cuc))) or (dai cua)) triet*.