Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
tinh da » tinh va, tinh gia, tinh lao
cua tre » cua te, cuu tre, dua tren
pu cac » tu cac, eu cac, pu xac
va cam » va cham, va cac, va cao
loc va » luc va

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

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