Perhaps you should try some spelling variations:
luc ban » duc ban, cuc ban, luc bat
hanh va » hang va, hanh vi
dua ban » dia ban, cua ban, qua ban
cua tre » cua te, cuu tre, cua triet
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
tu san » thu san, tu ban, tu can
va cua » va chua, via cua, ca cua

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) or (tu san)) ky nang xa hoi. hieu ve cham ((luc ban) or (dua ban)) hanh va cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cac) OR (tu san)) ky nang xa hoi. hieu ve cham ((luc ban) OR (dua ban)) hanh va cua tre.
• Adding a wildcard symbol may retrieve word variants: ((tu cac) or (tu san)) ky nang xa hoi. hieu ve cham ((luc ban) or (dua ban)) hanh va cua tre*.