Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
cham tuc » nham thuc, pham thuc, tham thuc
su triet » su viet, su tien, ve triet
thanh di » thanh doi, thanh de, thanh do
su sach » so sach, vu sach
tuc van » thuc van, truc van, tuc va
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
ly hang » ly quang
ty hang » ty xang, thi hang, thu hang

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 hang) or (ly hang)) xa hoi. hieu ve cham tuc van thanh di ((su triet) or (hoa viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((ty hang) OR (ly hang)) xa hoi. hieu ve cham tuc van thanh di ((su triet) OR (hoa viet)).
• Adding a wildcard symbol may retrieve word variants: su sach ((ty hang) or (ly hang)) xa hoi. hieu ve cham tuc van thanh di ((su triet) or (hoa viet))*.