Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
cao quoc » cac quoc, cao thuoc, han quoc
cac cuoc » cac nuoc, ca cuoc, cac quoc
hanh che » han che, hanh he, hanh nghe
nang co » nang cao, nang doc, nang noi
va hanh » van hanh, va thanh, va danh
che cua » cheo cua, chi cua, cho cua
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
co hoi » co hoc, co loi

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 co hoi. hieu qua ((cao quoc) or (cac cuoc)) va hanh che cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang co hoi. hieu qua ((cao quoc) OR (cac cuoc)) va hanh che cua triet.
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang co hoi. hieu qua ((cao quoc) or (cac cuoc)) va hanh che cua triet*.