Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
dinh dai » dinh dat, sinh dai, dinh dao
su sach » so sach, vu sach
nang ma » tang ma, sang ma, nang cao
ve cach » va cach, ve canh
va dinh » van dinh, va kinh, va tinh
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, ma hoa
ve cac » va cac, vien cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach y nang ma hoi. hieu ((ve cach) or (ve cac)) tu va dinh dai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang ma hoi. hieu ((ve cach) OR (ve cac)) tu va dinh dai cua triet*.