Perhaps you should try some spelling variations:
nang xay » dang xay, nganh xay, nang xuan
van hanh » van thanh, ban hanh, van anh
su triet » su viet, su tien, ve triet
xay hoi » xa hoi, tay hoi, cay phoi
xuc van » duc van, luc van, vuc van
hanh da » hanh dao, hanh dua, hanh va
tu san » thu san, tu ban, vu san
tu can » tu ban, tu cac, thu canh
va cam » va cham, va cac, va cao
da su » dan su, dat su, va su

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu san) or (tu can)) ky nang xay hoi. lieu va cam xuc van hanh da su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu san) OR (tu can)) ky nang xay hoi. lieu va cam xuc van hanh da su triet.
• Adding a wildcard symbol may retrieve word variants: ((tu san) or (tu can)) ky nang xay hoi. lieu va cam xuc van hanh da su triet*.