Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
cua triet » cua viet, su triet, va triet
va thanh » gia thanh, ban thanh, va tinh
ky lang » ky nang, ky dang, ky tang
hoa hoi » khoa hoi, hoa hoc, hoa doi
hieu va » lieu va, hieu qua
cao hoc » co hoc, cho hoc, chat hoc
tai cua » thai cua, tai cuc, tri cua
su xac » pu xac, su cac
xac ky » cac ky, sac ky, bac ky
ha hoi » ha noi, xa hoi, va hoi
va cao » va cac, va co, va dao

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

• Performing a fuzzy search may retrieve terms with similar spellings: su xac ky lang ((ha hoi) OR (hoa hoi)). hieu va cao hoc va thanh tai cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su xac ky lang ((ha hoi) OR (hoa hoi)). hieu va cao hoc va thanh tai cua triet".
• Adding a wildcard symbol may retrieve word variants: su xac ky lang ((ha hoi) OR (hoa hoi)). hieu va cao hoc va thanh tai cua triet*.