Perhaps you should try some spelling variations:
thanh ve » hanh ve, thanh va, thanh vien
thanh vi » hanh vi, thanh va, nhanh vi
vu sach » vu bach, su sach, vu khach
cac toc » cac toi, cac nuoc, cac thoi
sach ky » sac ky, sach y, sach ty
cac tuc » cac tu, cac tac, cac nuoc
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
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: vu sach ky lang xa hoi. lieu va ((cac tuc) OR (cac toc)) ban ((thanh vi) or (thanh ve)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ky lang xa hoi. lieu va ((cac tuc) OR (cac toc)) ban ((thanh vi) OR (thanh ve)) cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ky lang xa hoi. lieu va ((cac tuc) OR (cac toc)) ban ((thanh vi) or (thanh ve)) cua tre*".