Perhaps you should try some spelling variations:
danh kien » dinh kien, danh viet, linh kien
cua tre » cua te, cuu tre, cua triet
danh di » danh du, xanh di, danh dien
cam luc » cam xuc, cau luc
hieu ve » hieu van
hieu va » lieu va, hieu qua
sac ky » cac ky, sai ky
luc va » duc va, tuc va, loc va
te sac » te sach, te cac, te san
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ky nang x hoi. ((hieu ve) OR (hieu va)) cam luc va ((danh di) or (danh kien)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky nang x hoi. ((hieu ve) OR (hieu va)) cam luc va ((danh di) OR (danh kien)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky nang x hoi. ((hieu ve) OR (hieu va)) cam luc va ((danh di) or (danh kien)) cua tre".
• Adding a wildcard symbol may retrieve word variants: te sac ky nang x hoi. ((hieu ve) OR (hieu va)) cam luc va ((danh di) or (danh kien)) cua tre*.