Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hieu van » hieu va, thien van, lieu va
xuat ban » luat ban, xuat san, thuat ban
nang xa » nang x, lang xa, nang ma
van cam » van nam, van lam, van cau
cuc ban » cua ban, cac ban, cuu ban
cua tre » cua te, cuu tre, dua tren
pu xac » su xac
xac ky » cac ky, sac ky, bac ky

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

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