Perhaps you should try some spelling variations:
thanh van » thanh san, thanh toan, thanh phan
thanh vai » thanh hai, thanh tai, thanh oai
thien van » thi van
tu sach » thu sach, su sach, te sach
duc ban » duc tan, duc van, dua ban
van lam » van nam
lam duc » lam duoc, pham duc, nam duoc
ly vang » ly hang, ly van, ly quang
ly nang » ky nang, ly hang, ly quang
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: tu sach ((ly nang) OR (ly vang)) xa hoi. thien van lam duc ban ((thanh vai) or (thanh van)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((ly nang) OR (ly vang)) xa hoi. thien van lam duc ban ((thanh vai) OR (thanh van)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((ly nang) OR (ly vang)) xa hoi. thien van lam duc ban ((thanh vai) or (thanh van)) cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ((ly nang) OR (ly vang)) xa hoi. thien van lam duc ban ((thanh vai) or (thanh van)) cua tre*.