Perhaps you should try some spelling variations:
ve triet » va trien
va thanh » gia thanh, ban thanh, va tinh
su triet » su viet, su tien
thanh vi » hanh vi, thanh va, thanh ve
hieu va » lieu va
cham tu » pham tu, cam tu, chai tu
nang xa » nang x, lang xa, nang ma
su sach » so sach, vu sach
sach v » sach va, sach y, sach 2
v nang » va nang, vu nang, van nang

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 nang xa hoi. ((hieu va) or (hieu qua)) cham tu va thanh vi ((su triet) or (ve triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach v nang xa hoi. ((hieu va) OR (hieu qua)) cham tu va thanh vi ((su triet) OR (ve triet)).
• Adding a wildcard symbol may retrieve word variants: su sach v nang xa hoi. ((hieu va) or (hieu qua)) cham tu va thanh vi ((su triet) or (ve triet))*.