Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
hieu ve » hieu va, hieu van
luc ban » duc ban, luc bat, luc van
cuc ban » cua ban, cac ban, cuu ban
hanh va » hang va, hanh vi
ve cam » ve cham, ve cac, va cam
va cau » van cau, va cac, va dau
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cac ky nang x hoi. hieu ve cam ((luc ban) or (cuc ban)) hanh va cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ky nang x hoi. hieu ve cam ((luc ban) OR (cuc ban)) hanh va cau tren*.