Perhaps you should try some spelling variations:
tao khoi » tao hoi, thao khoa, lao khoa
van dinh » van minh, van dich, va dinh
te sach » toc sach
cam duc » cam xuc, cao duc, pham duc
ky sang » ky dang, ky tang, duy sang
dinh vi » dinh ve, dinh viet, dinh tri
hieu ve » hieu van
hieu va » lieu va, hieu qua
duc van » duc va, duc tan, duc manh
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ((ky sang) or (ky nang)) tao khoi. ((hieu ve) or (hieu va)) cam duc van dinh vi cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ky sang) OR (ky nang)) tao khoi. ((hieu ve) OR (hieu va)) cam duc van dinh vi cua vat.
• Adding a wildcard symbol may retrieve word variants: te sach ((ky sang) or (ky nang)) tao khoi. ((hieu ve) or (hieu va)) cam duc van dinh vi cua vat*.