Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
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, cuu tre, dua tren
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
van cau » van dau, van hau, van chat
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
xuc ban » duc ban, cuc ban, quoc ban

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 ky lang xa hoi. hieu van cau ((xuc ban) or (duc van)) danh hai ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky lang xa hoi. hieu van cau ((xuc ban) OR (duc van)) danh hai ((cua tre) OR (cua triet)).
• Adding a wildcard symbol may retrieve word variants: tu sach ky lang xa hoi. hieu van cau ((xuc ban) or (duc van)) danh hai ((cua tre) or (cua triet))*.