Perhaps you should try some spelling variations:
thai truc » thai thuc, thai tuc, thai thuy
tinh tri » dinh tri, minh tri, chinh tri
thi truc » thi trac, thi thuc, phim truc
va tinh » may tinh
sach ky » sach y, sach ty, sach kem
hieu va » lieu va, hieu qua
nang xa » nang x, lang xa, nang ma
cua tre » cua te, cuu tre, cua triet
sac ky » cac 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: su ((sach ky) or (sac ky)) nang xa hoi. hieu va ((thai truc) OR (thi truc)) va tinh tri cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ky) OR (sac ky)) nang xa hoi. hieu va ((thai truc) OR (thi truc)) va tinh tri cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach ky) or (sac ky)) nang xa hoi. hieu va ((thai truc) OR (thi truc)) va tinh tri cua tre*".