Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
hieu van » hieu va, thien van, lieu va
thanh vi » hanh vi, thanh va, thanh ve
ty hang » ly hang, thi hang, thu hang
van lam » van nam
lam duc » lam duoc, pham duc, nam duoc
duc ban » duc tan, duc van, dua ban
vi cua » vai cua, di cua
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: vu bach ((ty hang) OR (ty xang)) xa hoi. hieu van lam duc ban thanh vi cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu bach ((ty hang) OR (ty xang)) xa hoi. hieu van lam duc ban thanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: vu bach ((ty hang) OR (ty xang)) xa hoi. hieu van lam duc ban thanh vi cua te*.