Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
danh sai » dung sai, danh bat, danh dau
tu sach » thu sach, su sach, te sach
nang ma » tang ma, sang ma, nang cao
hiem he » hiem xe, hieu he, thien he
hieu le » hieu ve, hieu he, hieu ly
va danh » va dinh, va dan, va hanh
sai cua » dai cua, hai cua, lai cua
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, ma hoa
thu va » thuc va, thue va, tu 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 y nang ma hoi. ((hiem he) or (hieu le)) nam thu va danh sai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang ma hoi. ((hiem he) OR (hieu le)) nam thu va danh sai cua triet.
• Adding a wildcard symbol may retrieve word variants: tu sach y nang ma hoi. ((hiem he) or (hieu le)) nam thu va danh sai cua triet*.