Perhaps you should try some spelling variations:
luat duc » luat duoc, luat tuc, luat du
van hanh » van thanh, ban hanh, van anh
van luat » dan luat, va luat, van xuat
nang xa » nang x, lang xa, nang ma
thi van » thi lan, thi hanh, thi nang
sach ly » sach y, sach lo, sach hay
sach ty » sach y, sach tu, sach thu
duc van » duc va, duc tan, duc manh
vai cua » dai cua, lai cua, bai cua
hai cua » thai cua, dai cua, hoi cua

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 ty)) nang xa hoi. thi van luat duc van hanh ((vai cua) or (hai cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ly) OR (sach ty)) nang xa hoi. thi van luat duc van hanh ((vai cua) OR (hai cua)) triet.
• Adding a wildcard symbol may retrieve word variants: su ((sach ly) or (sach ty)) nang xa hoi. thi van luat duc van hanh ((vai cua) or (hai cua)) triet*.