Perhaps you should try some spelling variations:
chuc nganh » chuc nang, hoc nganh, cac nganh
luat ngan » cua ngan, luat dan
hieu van » hieu va, thien van, lieu va
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
xang xa » lang xa, mang xa, ang xa
van cau » van dau, van hau, van chat
ca tren » cau tren, cu tren, la tren
vi ca » vit ca, li ca, va ca

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ty xang xa hoi. hieu van cau ((chuc nganh) or (luat ngan)) hanh vi ca tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty xang xa hoi. hieu van cau ((chuc nganh) OR (luat ngan)) hanh vi ca tren.
• Adding a wildcard symbol may retrieve word variants: tu sach ty xang xa hoi. hieu van cau ((chuc nganh) or (luat ngan)) hanh vi ca tren*.