Perhaps you should try some spelling variations:
cua triet » su triet, va triet
tan hanh » tan thanh, tang hanh, toan hanh
cua viet » ca viet, hoa viet, cua vat
thu sac » thu sach, thu san, thu xac
hanh va » hang va, hanh vi
sac ky » cac ky, sai ky
ve cao » ve bao, ve cac, ve co
va cao » va cac, va co, va dao
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sac ky nang x hoi. hieu ((ve cao) OR (va cao)) duc tan hanh va ((cua triet) or (cua viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sac ky nang x hoi. hieu ((ve cao) OR (va cao)) duc tan hanh va ((cua triet) OR (cua viet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sac ky nang x hoi. hieu ((ve cao) OR (va cao)) duc tan hanh va ((cua triet) or (cua viet))".
• Adding a wildcard symbol may retrieve word variants: thu sac ky nang x hoi. hieu ((ve cao) OR (va cao)) duc tan hanh va ((cua triet) or (cua viet))*.