Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
chat xuc » chat huu, cam xuc, chao xu
van hanh » van thanh, van anh, van ban
ban hanh » ban hang
hieu ve » hieu va, hieu van
ve chat » va chat, van chat
cua tre » cua te, cuu tre, dua tren
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
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: tu sac ky nang x hoi. hieu ve chat xuc ((van hanh) or (ban hanh)) hai ((cua tre) OR (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang x hoi. hieu ve chat xuc ((van hanh) OR (ban hanh)) hai ((cua tre) OR (cua triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky nang x hoi. hieu ve chat xuc ((van hanh) or (ban hanh)) hai ((cua tre) OR (cua triet))".
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang x hoi. hieu ve chat xuc ((van hanh) or (ban hanh)) hai ((cua tre) OR (cua triet))*.