Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh tai » thanh tai, hang tai, han tai
nang ha » nang hai, nang han, nang hoa
hieu va » lieu va, hieu qua
cao hoc » chat hoc
cho hoc » khoa hoc
va hanh » van hanh, va thanh, ban hanh
tai cua » thai cua, tai cuc, tri cua
su cac » tu cac, su cao, su can
ha hoi » hoa hoi, ha noi, xa hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: su cac ky nang ha hoi. hieu va ((((cao hoc) OR (cho hoc))) or (co hoc)) va hanh tai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su cac ky nang ha hoi. hieu va ((((cao hoc) OR (cho hoc))) OR (co hoc)) va hanh tai cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su cac ky nang ha hoi. hieu va ((((cao hoc) OR (cho hoc))) or (co hoc)) va hanh tai cua triet*".