Perhaps you should try some spelling variations:
chieu tao » chieu cao, chieu tro, che tao
cao truc » cau truc, vao truc, cao thuoc
tao cao » bao cao, toan cao
sach ky » sac ky, sach y, sach ty
va danh » va dinh, va hanh, dia danh
sai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet
sai ky » sac ky
va dan » ca dan, va dao, va dau
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: thu ((sach ky) or (sai ky)) nang x hoi. chieu tao cao truc ((va danh) or (va dan)) sai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu ((sach ky) OR (sai ky)) nang x hoi. chieu tao cao truc ((va danh) OR (va dan)) sai cua tre.
• Adding a wildcard symbol may retrieve word variants: thu ((sach ky) or (sai ky)) nang x hoi. chieu tao cao truc ((va danh) or (va dan)) sai cua tre*.