Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
thanh lai » thanh hai, thanh lap, thanh loi
tu sach » thu sach, su sach, te sach
ly nang » ky nang, ly hang, ly vang
lai cua » dai cua, hai cua, lai chau
hieu ve » hieu va, hieu van
sach ly » sach y, sach lo, sach ty
cam duc » cam xuc, cao duc, pham duc
ma hoi » mai hoi, ma hoa, me hoi
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: tu sach ly nang ((ma hoi) or (xa hoi)). hieu ve ((cam duc) or (giao duc)) van thanh lai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ly nang ((ma hoi) OR (xa hoi)). hieu ve ((cam duc) OR (giao duc)) van thanh lai cua te.
• Adding a wildcard symbol may retrieve word variants: tu sach ly nang ((ma hoi) or (xa hoi)). hieu ve ((cam duc) or (giao duc)) van thanh lai cua te*.