Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
nang lai » nang tai, mang lai, nang cai
cac xuc » cam xuc, cac nuoc, chat xuc
va dinh » van dinh, va kinh, va tinh
hieu va » lieu va, hieu qua
sach ky » sac ky, sach y, sach ty
lai hoi » dai hoi, lai hoa, lai roi
cua tuc » cua duc, cua tu, cua thuoc
sai ky » sac ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach ky) or (sai ky)) nang lai hoi. hieu va cac xuc ((van hanh) or (va dinh)) dai cua tuc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sai ky)) nang lai hoi. hieu va cac xuc ((van hanh) OR (va dinh)) dai cua tuc.
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) or (sai ky)) nang lai hoi. hieu va cac xuc ((van hanh) or (va dinh)) dai cua tuc*.