Perhaps you should try some spelling variations:
dieu hien » dieu khien, dieu kien, bieu hien
hanh xuc » hanh xu, hanh duoc, nhanh cuc
sach ky » sach y, sach ty, sach kem
tinh va » tich va, trinh van, trinh vat
huu tre » huu tri, cuu tre, huu them
sac ky » cac ky, sai ky
va huu » vu huu
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: te ((sach ky) OR (sac ky)) nang x hoi. dieu hien ((hanh xuc) or (hanh phuc)) may tinh va huu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ky) OR (sac ky)) nang x hoi. dieu hien ((hanh xuc) OR (hanh phuc)) may tinh va huu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ky) OR (sac ky)) nang x hoi. dieu hien ((hanh xuc) or (hanh phuc)) may tinh va huu tre".
• Adding a wildcard symbol may retrieve word variants: te ((sach ky) OR (sac ky)) nang x hoi. dieu hien ((hanh xuc) or (hanh phuc)) may tinh va huu tre*.