Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh loi » thanh hoa, thanh hai, thanh lap
thanh lai » thanh hai, thanh lap, thanh tai
duc ban » duc tan, duc van, dua ban
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
y nang » ky nang, ly nang, v nang
va cao » va cac, va dao, va bao
va co » vo co

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. lieu ((va cao) or (va co)) duc ban ((thanh lai) OR (thanh loi)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang xa hoi. lieu ((va cao) OR (va co)) duc ban ((thanh lai) OR (thanh loi)) cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang xa hoi. lieu ((va cao) or (va co)) duc ban ((thanh lai) OR (thanh loi)) cua triet*".