Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
ban hanh » ban hang
hanh di » hanh vi, hanh de, hang di
tuc ban » thuc ban, truc ban, tu ban
dau tuc » dau tu, dao tuc, cau truc
su sach » so sach, vu sach
ly hang » ly quang
ty hang » ty xang, thi hang, thu hang
ty mang » ty xang, tin mang, tri mang
va dau » va dao
di cau » da cau, diem cau

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 ((ty mang) or (((ty hang) OR (ly hang)))) xa hoi. lieu va dau tuc ban hanh di cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((ty mang) OR (((ty hang) OR (ly hang)))) xa hoi. lieu va dau tuc ban hanh di cau tren*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((ty mang) or (((ty hang) OR (ly hang)))) xa hoi. lieu va dau tuc ban hanh di cau tren*".