Perhaps you should try some spelling variations:
hanh vinh » thanh vinh, khanh vinh, hanh tinh
vinh cua » sinh cua, tinh cua, dinh cua
nang xay » dang xay, nganh xay, nang xuan
van hanh » van thanh, ban hanh, van anh
cua tre » cua te, cuu tre, cua triet
xay hoi » xa hoi, tay hoi, cay phoi
va cham » va tham
xuc van » duc van, luc van, vuc van
va chat » van chat, va phat, cao chat
sac ky » sai ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: te ((sac ky) OR (cac ky)) nang xay hoi. hieu ((va cham) or (va chat)) xuc van hanh vinh cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sac ky) OR (cac ky)) nang xay hoi. hieu ((va cham) OR (va chat)) xuc van hanh vinh cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sac ky) OR (cac ky)) nang xay hoi. hieu ((va cham) or (va chat)) xuc van hanh vinh cua tre".
• Adding a wildcard symbol may retrieve word variants: te ((sac ky) OR (cac ky)) nang xay hoi. hieu ((va cham) or (va chat)) xuc van hanh vinh cua tre*.