Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hieu van » hieu va, thien van, lieu va
tinh lai » tinh lao, tinh hai, minh lai
so sach » bo sach, co sach, hoc sach
so sanh » do sanh
nang xa » nang x, lang xa, nang ma
van cac » van hac, van cau, van bac
dan may » dam may, dan tay, dat may
lai cua » dai cua, hai cua, lai chau
y nang » ky nang, ly nang, v nang

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)) y nang xa hoi. hieu van cac dan may tinh lai cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((so sach) OR (so sanh)) y nang xa hoi. hieu van cac dan may tinh lai cua triet".
• Adding a wildcard symbol may retrieve word variants: ((so sach) OR (so sanh)) y nang xa hoi. hieu van cac dan may tinh lai cua triet*.