Perhaps you should try some spelling variations:
cua triet » cua viet, su triet
dinh cua » dinh cuu, sinh cua, tinh cua
va triet » va thiet, va trien, ve triet
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
cau hoa » cau hoi
dinh cu » dinh cuu, dinh chuc, dinh chau
su xac » pu xac, su cac
xac ky » cac ky, sac ky, bac ky
ve cau » ke cau, va cau, ve cac
hoa va » hoa van, hoa xa, hoa vo

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

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