Perhaps you should try some spelling variations:
tan thanh » tran thanh, tang thanh, toan thanh
thanh hai » thanh phan, thanh hoa, thanh san
duc tre » duoc tren, duc tien
cam duc » cam xuc, cao duc, pham duc
cuc tre » cua tre, cuu tre, cuc thue
hieu va » lieu va, hieu qua
hieu ve » hieu van
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
sac ky » cac ky, sai ky
su sac » su sach, su cac, su xac

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sac ky lang xa hoi. ((hieu ve) or (hieu va)) cam duc tan thanh hai ((cuc tre) or (duc tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky lang xa hoi. ((hieu ve) OR (hieu va)) cam duc tan thanh hai ((cuc tre) OR (duc tre)).
• Adding a wildcard symbol may retrieve word variants: su sac ky lang xa hoi. ((hieu ve) or (hieu va)) cam duc tan thanh hai ((cuc tre) or (duc tre))*.