Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
ban thanh » ban hanh, ban hang
thanh vi » hanh vi, thanh va, thanh ve
cua tre » cua te, cuu tre, dua tren
xuc ban » duc ban, cuc ban, quoc ban
sach ty » sach y, sach thu, xach tay
nang co » nang cao, nang doc, nang noi
sach tu » sach thu, cach tu, sach uu
hieu ve » hieu va, hieu van
co hoi » co hoc, co loi
ve cam » ve cham, ve cac, va cam

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

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