Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh dat » thanh san, thanh hai, thanh van
hanh dao » lanh dao, thanh dam, doanh dao
hanh tai » thanh tai, hang tai, han tai
cao hoc » co hoc, cho hoc, chat hoc
hieu va » lieu va, hieu qua
dang ha » dong ha, dung ha, lang ha
ky dang » ky nang, ky danh
xac ky » cac ky, sac ky, bac ky
va cao » va cac, va co, va dao
ha hoi » hoa hoi, ha noi, xa hoi
pu xac » su xac

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

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