Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
hanh hai » thanh hai, nhanh hai, hang hai
ky tang » ky nang, ky dang, kho tang
tang xa » trang xa, tang ma, lang xa
hieu ve » hieu va, hieu van
cua tre » cua te, cuu tre, cua triet
duc ban » duc tan, duc van, duc man
dua ban » dia ban, cua ban, qua ban
su sac » su sach, su cac, su xac
ve cam » ve cham, ve cac, va cam
sac ky » cac ky, sai ky

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 tang xa hoi. hieu ve cam ((duc ban) OR (dua ban)) hanh hai ((cua tre) or (cua viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky tang xa hoi. hieu ve cam ((duc ban) OR (dua ban)) hanh hai ((cua tre) OR (cua viet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky tang xa hoi. hieu ve cam ((duc ban) OR (dua ban)) hanh hai ((cua tre) or (cua viet))*".