Perhaps you should try some spelling variations:
bieu hien » dieu hien, dieu khien, bien phien
hien hanh » dieu hanh
hanh xuc » hanh xu, hanh phuc, hanh duoc
sach ky » sach y, sach ty, sach kem
xuc may » xuc hay, truc may, phuc may
tinh va » tich va, trinh van, trinh vat
cuu tre » cua tre, cau tren, cau treo
sac ky » cac ky, sai ky
va cuu » va cau, va chu, va huu
x hoi » xa hoi, o hoi, 5 hoi

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) OR (sac ky)) nang ((x hoi) or (x ho)). bieu hien hanh xuc may tinh va cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ky) OR (sac ky)) nang ((x hoi) OR (x ho)). bieu hien hanh xuc may tinh va cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ky) OR (sac ky)) nang ((x hoi) or (x ho)). bieu hien hanh xuc may tinh va cuu tre".
• Adding a wildcard symbol may retrieve word variants: te ((sach ky) OR (sac ky)) nang ((x hoi) or (x ho)). bieu hien hanh xuc may tinh va cuu tre*.