Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
thu sach » tu sach, thuat sach, thuoc sach
hieu van » hieu va, thien van, lieu va
sach ky » sac ky, sach y, sach ty
van cam » van nam, van lam, van cau
van anh » tuan anh, van minh
ma hoi » mai hoi, ma hoa, me hoi
vi cua » vai cua, di cua
cua tu » cua tuc, cua su, cua cu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ky nang ((ma hoi) or (xa hoi)). hieu van cam xuc ((van anh) or (van thanh)) vi cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky nang ((ma hoi) OR (xa hoi)). hieu van cam xuc ((van anh) OR (van thanh)) vi cua tu.
• Adding a wildcard symbol may retrieve word variants: thu sach ky nang ((ma hoi) or (xa hoi)). hieu van cam xuc ((van anh) or (van thanh)) vi cua tu*.