Perhaps you should try some spelling variations:
dang dai » dang hai, dang bai, dang dan
phat xuc » chat xuc, phat xuat, phap xu
tieu su » thieu so
phap tu » phan tu, pham tu
ky dang » ky nang, ky danh
dai hoi » dai hoc, dai hai, dai moi
hieu su » hieu sau, hieu so, hieu suat
hanh di » hanh vi, hanh de, hang di
va hanh » van hanh, va thanh, va danh
di cua » dai cua, doi cua, de cua
tu sai » tu bai, tu san, tu cai
sai ky » sac ky
cua su » qua 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. ((hieu su) or (tieu su)) ((phat xuc) or (phap tu)) va hanh di cua su~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ky dang dai hoi. ((hieu su) OR (tieu su)) ((phat xuc) OR (phap tu)) va hanh di cua su.
• Adding a wildcard symbol may retrieve word variants: tu sai ky dang dai hoi. ((hieu su) or (tieu su)) ((phat xuc) or (phap tu)) va hanh di cua su*.