Perhaps you should try some spelling variations:
sach tham » sach nha
pham chuc » pham duc, pham huu, kham chua
hieu van » hieu va, thien van, lieu va
van pham » san pham, van phan, van phat
hanh vai » hanh vi, hanh va, hanh tai
co sach » bo sach, cuon sach, hoc sach
nang ma » tang ma, sang ma, mang may
chuc va » thuc va, thuc vat
va hanh » van hanh, va thanh, va danh
vai cua » dai cua, hai cua, lai cua
cua tuc » cua duc, cua tu, cua thuoc

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

• Performing a fuzzy search may retrieve terms with similar spellings: co sach tham ((nang ma) or (nang cao)) hoi. hieu van pham chuc va hanh vai cua tuc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: co sach tham ((nang ma) OR (nang cao)) hoi. hieu van pham chuc va hanh vai cua tuc.
• Adding a wildcard symbol may retrieve word variants: co sach tham ((nang ma) or (nang cao)) hoi. hieu van pham chuc va hanh vai cua tuc*.