Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
lang van » dang van, tang van, hoang van
tinh voi » trinh voi, tinh doi, binh voi
hieu van » hieu va, thien van, lieu va
lam xuc » cam xuc, lam duoc
cua tre » cua te, cuu tre, dua tren
va tinh » may tinh
so sach » so sanh, bo sach, co sach
sach ky » sac ky, sach y, sach ty
nang ma » tang ma, sang ma, nang cao
van lam » van nam
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ky ((lang van) or (nang ma)) hoi. hieu van lam xuc va tinh voi ((cua tre) OR (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky ((lang van) OR (nang ma)) hoi. hieu van lam xuc va tinh voi ((cua tre) OR (cua triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ky ((lang van) or (nang ma)) hoi. hieu van lam xuc va tinh voi ((cua tre) OR (cua triet))".
• Adding a wildcard symbol may retrieve word variants: so sach ky ((lang van) or (nang ma)) hoi. hieu van lam xuc va tinh voi ((cua tre) OR (cua triet))*.