Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh thai » nhanh thai, hinh thai, hanh tai
thai cua » than cua, tai cuc, tri cua
van hanh » van thanh, ban hanh, van anh
nang ho » nang hoc, nang co, tang ho
luc van » luoc van, luu van, duc van
hieu ve » hieu va, hieu van
cac luc » cau luc, coc luc, cac nuoc
tu sac » tu sach, tu cac, tu bac
ho lai » o lai
tu san » thu san, tu ban, tu can

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) or (tu san)) ky nang ho lai. ((hieu ve) or (hieu qua)) cac luc van hanh thai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sac) OR (tu san)) ky nang ho lai. ((hieu ve) OR (hieu qua)) cac luc van hanh thai cua triet.
• Adding a wildcard symbol may retrieve word variants: ((tu sac) or (tu san)) ky nang ho lai. ((hieu ve) or (hieu qua)) cac luc van hanh thai cua triet*.