Perhaps you should try some spelling variations:
luc ngan » luc nganh, luc nhan, luat ngan
cau tren » cu tren, dau tren, ca tren
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
cac luc » cau luc, coc luc, cac nuoc
hang vi » hang va, hanh vi, hang di
y nang » ky nang, ly nang, v nang
ve cac » va cac, vien cac
vi cau » va cau, ve cau, di cau

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 y nang xa hoi. hieu ve cac luc ngan hang vi cau tren~.
• Adding a wildcard symbol may retrieve word variants: tu sach y nang xa hoi. hieu ve cac luc ngan hang vi cau tren*.