Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
su sach » so sach, vu sach
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
thuc va » thuc vat, thuc dan, thuc day
hanh ve » hanh vi, hanh va, hanh kem
va dau » va dao
luc va » duc va, tuc va, loc va
ve cua » le cua, de cua, te cua

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 _ lang xa hoi. hieu va dau ((luc va) or (thuc va)) hanh ve cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach _ lang xa hoi. hieu va dau ((luc va) OR (thuc va)) hanh ve cua triet*.