Perhaps you should try some spelling variations:
hieu hien » bieu hien, dieu hien, chieu chien
chat xuc » chat huu, cam xuc, chao xu
cam dan » cac dan, ca dan, nam dan
sach ky » sac ky, sach ty, sach kem
cac xuc » cam xuc, cac nuoc, cac cuoc
cua tre » cua te, cuu tre, cua triet
nang xa » nang x, lang xa, nang ma
dan vi » doan vi, don vi, dan va
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: su ((sach ky) OR (sach y)) nang xa hoi. hieu hien ((cac xuc) or (chat xuc)) cam dan vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ky) OR (sach y)) nang xa hoi. hieu hien ((cac xuc) OR (chat xuc)) cam dan vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach ky) OR (sach y)) nang xa hoi. hieu hien ((cac xuc) or (chat xuc)) cam dan vi cua tre".
• Adding a wildcard symbol may retrieve word variants: su ((sach ky) OR (sach y)) nang xa hoi. hieu hien ((cac xuc) or (chat xuc)) cam dan vi cua tre*.