Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
khai cua » thai cua, hai cua, khi cua
dan khai » dang khai, van khai, dang khoi
thuc va » thuc vat, thuc dan, thuc day
van hoc » van hoa
sach tu » sach thu, sach ty, sach uu
nang xa » nang x, lang xa, nang ma
cach tu » cach thuc
van hac » van ha, van hai, van chat
va dan » ca dan, va dao, va dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: te ((sach tu) OR (cach tu)) nang xa hoi. hieu ((van hac) or (van hoc)) thuc va dan khai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach tu) OR (cach tu)) nang xa hoi. hieu ((van hac) OR (van hoc)) thuc va dan khai cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach tu) OR (cach tu)) nang xa hoi. hieu ((van hac) or (van hoc)) thuc va dan khai cua triet".
• Adding a wildcard symbol may retrieve word variants: te ((sach tu) OR (cach tu)) nang xa hoi. hieu ((van hac) or (van hoc)) thuc va dan khai cua triet*.