Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh tai, hanh van
thi hang » thi hanh, thi nang, thi hong
hieu van » hieu va, thien van, lieu va
tu sach » thu sach, su sach, tu cach
xuc ban » duc ban, cuc ban, quoc ban
hanh va » hanh vi
van cam » van nam, van lam, van cau
te sach » toc sach
cuu tre » cua tre, cau tren, cau treo
va hoi » xa hoi, va hoc, va hoa

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) OR (te sach)) thi hang va hoi. hieu van cam xuc ban ((hanh vai) or (hanh va)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) thi hang va hoi. hieu van cam xuc ban ((hanh vai) OR (hanh va)) cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (te sach)) thi hang va hoi. hieu van cam xuc ban ((hanh vai) or (hanh va)) cuu tre".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (te sach)) thi hang va hoi. hieu van cam xuc ban ((hanh vai) or (hanh va)) cuu tre*.