Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
luat duoc » luat tuc
hanh vai » hanh vi, hanh va, hanh tai
sach hay » sach han, sach ha, sach nay
van hanh » van thanh, ban hanh, van anh
duoc van » duoc va, duc van, duoc ban
van luat » dan luat, va luat, van xuat
thi van » thi lan, thi hanh, thi nang
vai cua » dai cua, hai cua, lai cua
sach ly » sach y, sach lo, sach luu
nang xa » nang x, lang xa, nang ma
sach ty » sach y, sach tu, sach thu

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((((sach ly) OR (sach hay))) or (sach ty)) nang xa hoi. thi van luat duoc van hanh vai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((((sach ly) OR (sach hay))) OR (sach ty)) nang xa hoi. thi van luat duoc van hanh vai cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((((sach ly) OR (sach hay))) or (sach ty)) nang xa hoi. thi van luat duoc van hanh vai cua triet".
• Adding a wildcard symbol may retrieve word variants: su ((((sach ly) OR (sach hay))) or (sach ty)) nang xa hoi. thi van luat duoc van hanh vai cua triet*.