Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
sach nham » sach nha, sach tham, sach han
nham nang » phap nang, cam nang, kha nang
thanh le » thinh le, thanh ve, thanh de
va thanh » gia thanh, ban thanh, va tinh
cam duc » cam xuc, cao duc, nam duoc
so sach » so sanh, bo sach, co sach
hieu ve » hieu van
nang ma » tang ma, sang ma, nang cao
hieu va » lieu va, hieu qua
ma hoi » mai hoi, xa hoi, ma hoa
le cua » ly cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach nham nang ma hoi. ((hieu ve) OR (hieu va)) ((cam duc) or (pham duc)) va thanh le cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach nham nang ma hoi. ((hieu ve) OR (hieu va)) ((cam duc) OR (pham duc)) va thanh le cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach nham nang ma hoi. ((hieu ve) OR (hieu va)) ((cam duc) or (pham duc)) va thanh le cua triet*".