Perhaps you should try some spelling variations:
ve triet » va trien, su triet
su sach » so sach, vu sach
sach ly » sach y, sach lo, sach ty
ly lang » ly hang, ly vang, le lang
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
truc va » thuc va, thuc vat, trung va
vi ve » va ve, gi ve, ve ve

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 ly lang xa hoi. hieu va cac ((duc va) or (truc va)) hanh vi ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ly lang xa hoi. hieu va cac ((duc va) OR (truc va)) hanh vi ve triet.
• Adding a wildcard symbol may retrieve word variants: su sach ly lang xa hoi. hieu va cac ((duc va) or (truc va)) hanh vi ve triet*.