Perhaps you should try some spelling variations:
phan chuc » pham chuc, phan khuc, phan thuc
sach thu » sach thue, sach thieu, sach tham
thu nang » thi nang, thu hang, thu bang
hanh vai » hanh vi, hanh va, hanh tai
so sach » so sanh, bo sach, co sach
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu va, hieu van
ve phan » va phan, ke phan, ve phat
chuc va » thuc va, thuc vat
va hanh » van hanh, va thanh, va danh
cua tuc » cua duc, cua tu, cua thuoc
ma hoi » mai hoi, xa hoi, ma hoa
cua su » qua su

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 thu nang ma hoi. hieu ve phan chuc va hanh vai ((cua tuc) or (cua su))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach thu nang ma hoi. hieu ve phan chuc va hanh vai ((cua tuc) OR (cua su)).
• Adding a wildcard symbol may retrieve word variants: so sach thu nang ma hoi. hieu ve phan chuc va hanh vai ((cua tuc) or (cua su))*.