Perhaps you should try some spelling variations:
hanh tai » thanh tai, han tai, hinh tai
hieu van » hieu va, thien van, lieu va
hang tai » hang va, dung tai
cua tre » cua te, cua triet, dua tren
cuu tre » cau tren, cau treo
hai tuc » thai tuc, hai cuc, thai thuc
van hai » van ha, van chat, van hanh
nang ma » tang ma, sang ma, nang cao
sac ky » cac ky, sai ky
ma hoi » mai hoi, xa hoi, ma hoa
su sac » su sach, su cac, su xac

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 sac ky nang ma hoi. hieu van hai tuc xa ((hanh tai) OR (hang tai)) ((cua tre) OR (cuu tre))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky nang ma hoi. hieu van hai tuc xa ((hanh tai) OR (hang tai)) ((cua tre) or (cuu tre))~".
• Adding a wildcard symbol may retrieve word variants: su sac ky nang ma hoi. hieu van hai tuc xa ((hanh tai) OR (hang tai)) ((cua tre) or (cuu tre))*.