Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thu nang » thi nang, thu hang, thu bang
hanh dai » hanh tai, hanh dao, vanh dai
thi cong » tai cong, thien cong
va hanh » van hanh, va thanh, va danh
hieu va » lieu va, hieu qua
tu sach » thu sach, su sach, te sach
hieu ve » hieu van
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ((thu nang) or (thi cong)) xa hoi. ((hieu ve) or (hieu va)) cam xuc va hanh dai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((thu nang) OR (thi cong)) xa hoi. ((hieu ve) OR (hieu va)) cam xuc va hanh dai cua triet.
• Adding a wildcard symbol may retrieve word variants: tu sach ((thu nang) or (thi cong)) xa hoi. ((hieu ve) or (hieu va)) cam xuc va hanh dai cua triet*.