Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
qua cham » qua hai, va cham, qua cua
qua cac » cua cac
nang xa » nang x, lang xa, nang ma
va danh » va dinh, va dan, va hanh
danh vi » hanh vi, dinh vi, danh di
sach 2 » sach y
sach v » sach va, sach y, sach vay
vi cua » vai cua, di cua

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

• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach v) OR (sach 2)) nang xa hoi. hieu ((qua cham) OR (qua cac)) duc va danh vi cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach v) or (sach 2)) nang xa hoi. hieu ((qua cham) OR (qua cac)) duc va danh vi cua triet~".
• Adding a wildcard symbol may retrieve word variants: te ((sach v) or (sach 2)) nang xa hoi. hieu ((qua cham) OR (qua cac)) duc va danh vi cua triet*.