Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
hieu van » hieu va, thien van, lieu va
danh hai » dang hai, lanh hai, manh hai
duc van » duc va, duc tan, duc manh
cua tre » cua te, cua triet, dua tren
cuu tre » cau tren, cau treo
xuc ban » duc ban, cuc ban, quoc ban
van cam » van nam, van lam, van cau
lang ha » long ha
y lang » o lang, _ lang, tay lang
ha hoi » hoa hoi, ha noi, xa hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach y lang ha hoi. hieu van cam ((xuc ban) or (duc van)) danh hai ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y lang ha hoi. hieu van cam ((xuc ban) OR (duc van)) danh hai ((cua tre) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: thu sach y lang ha hoi. hieu van cam ((xuc ban) or (duc van)) danh hai ((cua tre) or (cuu tre))*.