Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
cham xuc » cam xuc, chat xuc, cham soc
dang xay » dang van, van xay
xuc van » duc van, luc van, vuc van
va cham » va chat, va tham
xay hoi » xa hoi, tay hoi, cay phoi
ky dang » ky nang, ky danh
tu can » tu ban, tu cac, thu canh
doi su » oi su, don su, voi su
tu san » thu san, tu ban, vu san
di su » ki su, da su, de 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 dang xay hoi. lieu va cham xuc van hanh ((di su) or (doi su)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu san) OR (tu can)) ky dang xay hoi. lieu va cham xuc van hanh ((di su) OR (doi su)) triet.
• Adding a wildcard symbol may retrieve word variants: ((tu san) or (tu can)) ky dang xay hoi. lieu va cham xuc van hanh ((di su) or (doi su)) triet*.