Perhaps you should try some spelling variations:
thien van » thi van
cua triet » cua viet, su triet, va triet
danh dao » doanh dao, lanh dao, danh dau
dao cua » dai cua, day cua, dan cua
va danh » va dinh, va dan, va hanh
tu sach » thu sach, su sach, te sach
hieu ve » hieu va, hieu van
mai hoi » mai khoi, dai hoi, lai hoi
ly hang » ly quang
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 ((ky nang) or (ly hang)) mai hoi. ((hieu ve) or (thien van)) cam xuc va danh dao cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((ky nang) OR (ly hang)) mai hoi. ((hieu ve) OR (thien van)) cam xuc va danh dao cua triet.
• Adding a wildcard symbol may retrieve word variants: tu sach ((ky nang) or (ly hang)) mai hoi. ((hieu ve) or (thien van)) cam xuc va danh dao cua triet*.