Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
danh sinh » dang sinh, danh vinh, tinh sinh
thanh hoc » thanh hoa, than hoc, thanh ho
thi hang » thi hanh, thi nang, thi thanh
sinh cua » manh cua, dinh cuu, sinh va
thi hong » thi phuong, thi hanh, thi nang
thi cong » tai cong, thien cong
te sach » toc sach
va danh » va dinh, va dan, va hanh
thi van » thi lan, thi hanh, thi nang
cua tre » cua te, cuu tre, cua triet

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ((thi hang) or (((thi hong) OR (thi cong)))) xa hoi. thi van thanh hoc va danh sinh cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((thi hang) OR (((thi hong) OR (thi cong)))) xa hoi. thi van thanh hoc va danh sinh cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((thi hang) or (((thi hong) OR (thi cong)))) xa hoi. thi van thanh hoc va danh sinh cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach ((thi hang) or (((thi hong) OR (thi cong)))) xa hoi. thi van thanh hoc va danh sinh cua tre*.