Perhaps you should try some spelling variations:
lang van » dang van, tang van, hoang van
van hieu » cao hieu
luat ban » luat bao, luat dan, luat bat
hoc sac » hoc sach, hoc cac, hoc mac
hanh di » hanh vi, hanh de, hang di
cuc ban » cua ban, cac ban, cuu ban
va tham » van tham, va thanh, va thuat
va cham » va chat
ky lang » ky nang, ky dang, ky tang
sac ky » cac ky, sai ky
di cua » dai cua, doi cua, de cua
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: hoc sac ky lang van hieu. hieu ((va cham) or (va tham)) ((luat ban) or (cuc ban)) hanh di cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc sac ky lang van hieu. hieu ((va cham) OR (va tham)) ((luat ban) OR (cuc ban)) hanh di cua te.
• Adding a wildcard symbol may retrieve word variants: hoc sac ky lang van hieu. hieu ((va cham) or (va tham)) ((luat ban) or (cuc ban)) hanh di cua te*.