Perhaps you should try some spelling variations:
phan thuc » nhan thuc, phap thuc, pham thuc
thu nang » thi nang, thu hang, thu bang
so sach » bo sach, co sach, hoc sach
vai cua » dai cua, hai cua, lai cua
va danh » va dinh, va dan, dia danh
va hanh » van hanh, va thanh, ban hanh
ve phan » va phan, ke phan, ve phat
hieu ve » hieu va, hieu van
cao hoi » cau hoi, co hoi, cao hoc
so sanh » do sanh
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 cao hoi. hieu ve phan thuc ((va hanh) or (va danh)) vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sach) OR (so sanh)) thu nang cao hoi. hieu ve phan thuc ((va hanh) OR (va danh)) vai cua te.
• Adding a wildcard symbol may retrieve word variants: ((so sach) or (so sanh)) thu nang cao hoi. hieu ve phan thuc ((va hanh) or (va danh)) vai cua te*.