Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
nang xa » nang x, nang ma, mang xa
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
thuc va » thuc vat, thuc dan, thuc day
va hanh » van hanh, va thanh, va danh
sach v » sach va, sach 2, sach vay
vi cua » vai cua, di cua
ve am » va am

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