Perhaps you should try some spelling variations:
thanh van » thanh san, thanh toan, thanh phan
ban thanh » ban hanh, ban hang
ve triet » va trien, su triet
lam duoc » nam duoc, luat duoc, lam thuoc
hieu van » hieu va, thien van, lieu va
cua tre » cua te, cuu tre, cua triet
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
lam xuc » cam xuc
hang ca » hang va, nang cao, hang tai
ty hang » ly hang, ty xang, thi hang
ca hoi » cau hoi, cua hoi, xa hoi

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 ca hoi. hieu van ((lam xuc) or (lam duoc)) ban thanh van ((cua tre) or (ve triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty hang ca hoi. hieu van ((lam xuc) OR (lam duoc)) ban thanh van ((cua tre) OR (ve triet)).
• Adding a wildcard symbol may retrieve word variants: su sach ty hang ca hoi. hieu van ((lam xuc) or (lam duoc)) ban thanh van ((cua tre) or (ve triet))*.