Perhaps you should try some spelling variations:
danh dien » dinh dien, danh kien, danh lien
dien cua » dieu cua, dien cuc, dien cu
hieu su » hieu sau, tieu su, hieu so
ky dang » ky nang, ky danh
dai hoi » dai hoc, dai moi
dai hai » dai han, dai tai, dai thao
su phat » su pham, tu phat, xu phat
tu sai » tu bai, tu san, tu cai
xuc va » tuc va, luc va, xac va
sai ky » sac ky
cua cu » cua chu, cua cau, cua su

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sai ky dang ((dai hoi) or (dai hai)). hieu su phat ((xuc va) OR (duc va)) danh dien cua cu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ky dang ((dai hoi) OR (dai hai)). hieu su phat ((xuc va) OR (duc va)) danh dien cua cu*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sai ky dang ((dai hoi) or (dai hai)). hieu su phat ((xuc va) OR (duc va)) danh dien cua cu*".