Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
ban thanh » ban hanh, ban hang
su sach » so sach, vu sach
vai cua » dai cua, hai cua, lai cua
cao suc » cao su, cao duc
hieu ve » hieu va, hieu van
ly hang » ly quang
ly vang » ly van, ly quang
cua te » cua tu

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 vang) OR (ly hang)) xa hoi. hieu ve ((giao duc) or (cao suc)) ban thanh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((ly vang) OR (ly hang)) xa hoi. hieu ve ((giao duc) OR (cao suc)) ban thanh vai cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((ly vang) OR (ly hang)) xa hoi. hieu ve ((giao duc) or (cao suc)) ban thanh vai cua te*".