Perhaps you should try some spelling variations:
manh thanh » danh thanh, minh thanh, manh thang
thanh lai » thanh hai, thanh lap, thanh loi
ly quang » le quang, vu quang
su sach » so sach, vu sach
lai cua » dai cua, hai cua, lai chau
cao duc » dao duc, cao suc, giao duc
cam duc » cam xuc, pham duc, nam duoc
thi van » thi lan, thi hanh, thi nang
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 ((ly quang) or (ty xang)) xa hoi. thi van ((cam duc) OR (cao duc)) manh thanh lai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((ly quang) OR (ty xang)) xa hoi. thi van ((cam duc) OR (cao duc)) manh thanh lai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((ly quang) or (ty xang)) xa hoi. thi van ((cam duc) OR (cao duc)) manh thanh lai cua te".
• Adding a wildcard symbol may retrieve word variants: su sach ((ly quang) or (ty xang)) xa hoi. thi van ((cam duc) OR (cao duc)) manh thanh lai cua te*.