Perhaps you should try some spelling variations:
thanh dat » thanh san, thanh hai, thanh ha
thanh van » thanh san, thanh toan, thanh phan
cua triet » cua viet, su triet, va triet
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu va, hieu van
cac duc » cac du, cao duc, cac dac
cuu tre » cua tre, cau tren, cau treo
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky
ve cac » va cac, vien cac

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: te sac ky nang ma hoa. hieu ve cac duc va ((thanh dat) OR (thanh van)) ((cuu tre) OR (cua triet))~.
• Adding a wildcard symbol may retrieve word variants: te sac ky nang ma hoa. hieu ve cac duc va ((thanh dat) or (thanh van)) ((cuu tre) or (cua triet))*.