Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
ban hanh » ban hang
xuc ban » duc ban, cuc ban, quoc ban
cac xuc » cam xuc, cac nuoc, chat xuc
hieu va » lieu va, hieu qua
sach ty » sach y, sach thu, xach tay
lang xa » lang ha, dang xay, lang van
sach tu » sach thu, cach tu, sach uu
cuu tre » cua tre, cau tren, cau treo

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

• Performing a fuzzy search may retrieve terms with similar spellings: te ((sach ty) or (sach tu)) lang xa hoi. hieu va cac xuc ban hanh vi ((cua triet) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ty) OR (sach tu)) lang xa hoi. hieu va cac xuc ban hanh vi ((cua triet) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: te ((sach ty) or (sach tu)) lang xa hoi. hieu va cac xuc ban hanh vi ((cua triet) or (cuu tre))*.