Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh ve » hanh ve, thanh va, thanh vien
thanh vi » hanh vi, thanh va, nhanh vi
duc ban » duc tan, duc van, dua ban
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
ve cao » ve bao, ve cac, ve co
va cao » va cac, va co, va dao

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 ty nang xa hoi. hieu ((ve cao) OR (va cao)) duc ban ((thanh vi) or (thanh ve)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty nang xa hoi. hieu ((ve cao) OR (va cao)) duc ban ((thanh vi) OR (thanh ve)) cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty nang xa hoi. hieu ((ve cao) OR (va cao)) duc ban ((thanh vi) or (thanh ve)) cua triet".
• Adding a wildcard symbol may retrieve word variants: su sach ty nang xa hoi. hieu ((ve cao) OR (va cao)) duc ban ((thanh vi) or (thanh ve)) cua triet*.