Perhaps you should try some spelling variations:
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
hanh va » hang va, hanh vi
cua tre » cua te, cuu tre, cua triet
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
ve cam » ve cham, ve cac, va cam
tuc va » thuc va, truc va, thuc vat
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: su sac ky nang xa hoi. hieu ve cam ((duc va) or (((tuc va) or (tuc xa)))) hanh va cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky nang xa hoi. hieu ve cam ((duc va) OR (((tuc va) OR (tuc xa)))) hanh va cua tre.
• Adding a wildcard symbol may retrieve word variants: su sac ky nang xa hoi. hieu ve cam ((duc va) or (((tuc va) or (tuc xa)))) hanh va cua tre*.