Perhaps you should try some spelling variations:
thanh hoi » thanh hoai, thanh hoa, thanh hai
tan thanh » tran thanh, tang thanh, toan thanh
su triet » su viet, su tien, ve triet
nang ma » tang ma, sang ma, nang cao
hieu va » lieu va, hieu qua
cac duc » cac du, cao duc, cac dac
cuu tre » cua tre, cau tren, cau treo
tu sai » tu bai, tu san, tu cai
sai ky » sac ky
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sai ky nang ma hoi. hieu va cac duc tan thanh hoi ((cuu tre) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ky nang ma hoi. hieu va cac duc tan thanh hoi ((cuu tre) OR (su triet)).
• Adding a wildcard symbol may retrieve word variants: tu sai ky nang ma hoi. hieu va cac duc tan thanh hoi ((cuu tre) or (su triet))*.