Perhaps you should try some spelling variations:
danh doi » danh di, thanh doi, dung doi
hieu ve » hieu van
hieu va » lieu va, hieu qua
cam luc » cam xuc, cau luc
va danh » va dinh, va dan, va hanh
doi cua » dai cua, hoi cua, dong cua
cua tre » cua te, cuu tre, cua triet
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky
luc va » duc va, tuc va, loc va
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 doi 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 doi 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 doi cua tre*.