Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh lai » hanh lam, hanh tai, thanh lap
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
ky sang » ky nang, ky dang, ky tang
sang xa » song xa, lang xa, sang ma
hieu ve » hieu va, hieu van
xuc van » duc van, luc van, thuc van
xuc ban » duc ban, cuc ban, quoc ban
cua tre » cua te, cuu tre, dua tren
ve cam » ve cham, ve cac, va cam

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