Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thuc dan » hoc dan, thuc vat
ty nang » ky nang, ty xang, ty hang
nang ma » tang ma, sang ma, nang cao
hieu ly » hieu ky, lieu ly, dieu ly
vu sach » vu bach, vu khach
su sach » so sach
ma hoi » mai hoi, xa hoi, ma hoa
vi cua » vai cua, di cua

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) OR (vu sach)) ty nang ma hoi. hieu ly nam ((thuc dan) or (thuc hanh)) hanh vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (vu sach)) ty nang ma hoi. hieu ly nam ((thuc dan) OR (thuc hanh)) hanh vi cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (vu sach)) ty nang ma hoi. hieu ly nam ((thuc dan) or (thuc hanh)) hanh vi cua triet*".