Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh vai » thanh hai, thanh van, thanh tai
hieu van » hieu va, thien van, lieu va
dua tren » dung tren
va triet » va thiet, va trien, ve triet
hang cau » hang dau, hang ca, nhung cau
van cam » van nam, van lam, van cau
xuc ban » duc ban, cuc ban, quoc ban
sach ty » sach y, sach tu, sach thu
ty hang » ly hang, ty xang, thi hang
su sach » so sach, vu sach
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 ty hang cau hoi. hieu van cam xuc ban thanh vai ((((dua tren) or (cua te))) or (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty hang cau hoi. hieu van cam xuc ban thanh vai ((((dua tren) OR (cua te))) OR (va triet)).
• Adding a wildcard symbol may retrieve word variants: su sach ty hang cau hoi. hieu van cam xuc ban thanh vai ((((dua tren) or (cua te))) or (va triet))*.