Perhaps you should try some spelling variations:
cuc triet » cua triet, su triet, cac trieu
thanh tai » thanh hai, thanh toan, doanh tai
lang hoa » hang hoa, lang ha, nang hoa
va thanh » gia thanh, ban thanh, va tinh
ky lang » ky nang, ky dang, ky tang
hoa hoi » khoa hoi, hoa hoc, hoa doi
su xac » pu xac, su cac
xac ky » cac ky, sac ky, bac ky

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 hoa hoi. ((((hieu va) or (hieu qua))) or (lieu va)) co hoc va thanh tai cuc triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su xac ky lang hoa hoi. ((((hieu va) OR (hieu qua))) OR (lieu va)) co hoc va thanh tai cuc triet.
• Adding a wildcard symbol may retrieve word variants: su xac ky lang hoa hoi. ((((hieu va) or (hieu qua))) or (lieu va)) co hoc va thanh tai cuc triet*.