Perhaps you should try some spelling variations:
phan chuc » pham chuc, phan khuc, phan thuc
thu nang » thi nang, thu hang, thu bang
chuc van » chu van, chuc va, thuc van
van hanh » van thanh, ban hanh, van anh
hanh dai » hanh tai, hanh dao, vanh dai
so sach » bo sach, co sach, hoc sach
so sanh » do sanh
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu va, hieu van
ve phan » va phan, ke phan, ve phat
ma hoi » mai hoi, xa hoi, ma hoa
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: ((so sach) or (so sanh)) thu nang ma hoi. hieu ve phan chuc van hanh dai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sach) OR (so sanh)) thu nang ma hoi. hieu ve phan chuc van hanh dai cua te.
• Adding a wildcard symbol may retrieve word variants: ((so sach) or (so sanh)) thu nang ma hoi. hieu ve phan chuc van hanh dai cua te*.