Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
van thanh » ban thanh, van tuan
van tham » van tuan, van chat, van thu
thanh vi » hanh vi, thanh va, thanh ve
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
va tham » va cham, va thanh, va thuat
van tai » von tai, van tuan
luu van » cuu van, luan van, luu hanh
y nang » ky nang, ly nang, v nang
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: tu sach y nang xa hoi. hieu ((va tham) or (((van tham) OR (van tai)))) luu van thanh vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang xa hoi. hieu ((va tham) OR (((van tham) OR (van tai)))) luu van thanh vi cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang xa hoi. hieu ((va tham) or (((van tham) OR (van tai)))) luu van thanh vi cua triet".
• Adding a wildcard symbol may retrieve word variants: tu sach y nang xa hoi. hieu ((va tham) or (((van tham) OR (van tai)))) luu van thanh vi cua triet*.