Perhaps you should try some spelling variations:
pham chuc » pham duc, pham huu, kham chua
sach thu » sach thue, sach thieu, sach tham
hanh dai » hanh tai, hanh dao, vanh dai
co sach » bo sach, cuon sach, hoc sach
sang ma » tang ma, nang ma, sang tao
hieu ve » hieu va, hieu van
ve pham » vi pham, v pham, ve phan
chuc va » thuc va, thuc vat
va hanh » van hanh, va thanh, va danh
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: co sach thu ((mang may) or (sang ma)) hoi. hieu ve pham chuc va hanh dai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: co sach thu ((mang may) OR (sang ma)) hoi. hieu ve pham chuc va hanh dai cua te.
• Adding a wildcard symbol may retrieve word variants: co sach thu ((mang may) or (sang ma)) hoi. hieu ve pham chuc va hanh dai cua te*.