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