Perhaps you should try some spelling variations:
hieu hien » bieu hien, dieu hien, chieu chien
ban hanh » ban hang
hanh den » hanh de, nhanh dien, hanh dong
su triet » su viet, su tien, ve triet
tu sach » thu sach, tu cach, vu sach
te sach » toc sach
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
dai xuc » dai xu, dai luoc, dai thuc
xuc ban » duc ban, cuc ban, quoc ban
den su » dan su, nen su

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((((tu sach) OR (te sach))) or (su sach)) ky nang xa hoi. hieu hien dai xuc ban hanh den su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((tu sach) OR (te sach))) OR (su sach)) ky nang xa hoi. hieu hien dai xuc ban hanh den su triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((tu sach) OR (te sach))) or (su sach)) ky nang xa hoi. hieu hien dai xuc ban hanh den su triet*".