Perhaps you should try some spelling variations:
cham luu » cham cuu, chat lua, phap luu
ban hanh » ban hang
ve triet » va trien, su triet
tu sach » thu sach, su sach, te sach
sach ly » sach y, sach lo, sach ty
ly hang » ly quang
hang xa » hoang xa, hang va, hang ca
hieu va » lieu va, hieu qua
va cham » va chat, va tham
luu ban » luu bang, luu van, luu dan
su tien » su kien, su hien, tu tieng

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ly hang xa hoi. hieu va cham luu ban hanh vi ((su tien) or (ve triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ly hang xa hoi. hieu va cham luu ban hanh vi ((su tien) OR (ve triet)).
• Adding a wildcard symbol may retrieve word variants: tu sach ly hang xa hoi. hieu va cham luu ban hanh vi ((su tien) or (ve triet))*.