Perhaps you should try some spelling variations:
thieu nien » thien nhien
sach thu » sach thue, sach thieu, sach tham
thu hang » thi hang, thuc hanh, thu huong
nien cac » vien cac, dien cac, bien cac
cac luoc » cac nuoc, cac cuoc, cac quoc
luoc van » luoc can, luoc va, luc van
van hanh » van thanh, ban hanh, van anh
su triet » su viet, su tien
ve triet » va trien
su sach » so sach, vu sach
hang xa » hoang xa, hang va, hang ca

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 thu hang xa hoi. thieu nien cac luoc van hanh vi ((su triet) or (ve triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach thu hang xa hoi. thieu nien cac luoc van hanh vi ((su triet) OR (ve triet)).
• Adding a wildcard symbol may retrieve word variants: su sach thu hang xa hoi. thieu nien cac luoc van hanh vi ((su triet) or (ve triet))*.