Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
tinh voi » trinh voi, tinh doi, binh voi
ban tinh » ban thanh, quan tinh, ban hanh
cam cuc » cam xuc, cham cuu, pham cuc
cua tre » cua te, cuu tre, dua tren
cuc ban » cua ban, cac ban, cuu ban
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
hieu va » lieu va, hieu qua
hieu ve » hieu van
dang xa » dang xay, lang xa, dang ha
ky dang » ky nang, ky danh

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 dang xa hoi. ((hieu ve) or (hieu va)) cam cuc ban tinh voi ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky dang xa hoi. ((hieu ve) OR (hieu va)) cam cuc ban tinh voi ((cua tre) OR (cua triet)).
• Adding a wildcard symbol may retrieve word variants: tu sach ky dang xa hoi. ((hieu ve) or (hieu va)) cam cuc ban tinh voi ((cua tre) or (cua triet))*.