Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hieu viec » nhieu viec, hieu ve, sieu viet
viec tai » vien tai, lieu tai, viec lam
tai nuoc » tai quoc, thi nuoc, tham nuoc
dinh doi » dinh moi, tinh doi, dinh toi
so sach » bo sach, co sach, hoc sach
so sanh » do sanh
nang ma » tang ma, sang ma, nang cao
va dinh » van dinh, va kinh, va tinh
doi cua » dai cua, hoi cua
ma hoi » mai hoi, xa hoi, ma hoa

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) OR (so sanh)) ky nang ma hoi. hieu viec tai nuoc va dinh doi cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((so sach) OR (so sanh)) ky nang ma hoi. hieu viec tai nuoc va dinh doi cua triet".
• Adding a wildcard symbol may retrieve word variants: ((so sach) OR (so sanh)) ky nang ma hoi. hieu viec tai nuoc va dinh doi cua triet*.