Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
cao hoa » cao hoat, cao khoa, cau hoa
hieu va » lieu va, hieu qua
cam luc » cam xuc
cau luc » cau truc, cau phuc
dinh ve » dinh ket, dinh van

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 cao hoa. hieu va ((cam luc) OR (cau luc)) va ((hanh vi) or (dinh ve)) su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang cao hoa. hieu va ((cam luc) OR (cau luc)) va ((hanh vi) OR (dinh ve)) su triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang cao hoa. hieu va ((cam luc) OR (cau luc)) va ((hanh vi) or (dinh ve)) su triet*".