Perhaps you should try some spelling variations:
nang xa » nang x, lang xa, nang ma
truc va » thuc va, thuc vat, trung va
van cua » vang cua, ban cua, dan cua
cua tre » cua te, cuu tre, cua triet
tu cao » cu cao, tu cac, vu cao
va cao » va co, va dao, va bao
tuc va » thuc va, tuc xa, duc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cao ky nang xa hoi. hieu ((va cao) OR (va cac)) ((tuc va) or (truc va)) dinh van cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cao ky nang xa hoi. hieu ((va cao) OR (va cac)) ((tuc va) OR (truc va)) dinh van cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cao ky nang xa hoi. hieu ((va cao) OR (va cac)) ((tuc va) or (truc va)) dinh van cua tre".
• Adding a wildcard symbol may retrieve word variants: tu cao ky nang xa hoi. hieu ((va cao) OR (va cac)) ((tuc va) or (truc va)) dinh van cua tre*.