Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thuc van » thuc vat, thuc dan, thuc va
hanh vai » hanh vi, hanh tai, hanh van
thu sach » tu sach, thuat sach, thuoc sach
hieu ve » hieu va, hieu van
tuc van » truc van, tuc va, duc van
sach ky » sac ky, sach y, sach ty
dang xa » dang xay, lang xa, dang ha
ky dang » ky nang, ky danh
hanh va » hang va, hanh vi
ve cac » va cac, vien cac

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ky dang xa hoi. hieu ve cac ((tuc van) OR (thuc van)) ((hanh vai) or (hanh va)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky dang xa hoi. hieu ve cac ((tuc van) OR (thuc van)) ((hanh vai) OR (hanh va)) cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ky dang xa hoi. hieu ve cac ((tuc van) OR (thuc van)) ((hanh vai) or (hanh va)) cua triet".
• Adding a wildcard symbol may retrieve word variants: thu sach ky dang xa hoi. hieu ve cac ((tuc van) OR (thuc van)) ((hanh vai) or (hanh va)) cua triet*.